compare bloom's taxonomy and webb's depth of knowledge

Comparison of Learning Taxonomies. The DOK (a comparison) Bloom's Taxonomy categorizes the cognitive skills required of the brain to perform a task, describing the “type of thinking processes” necessary to answer a question.. Your email address will not be published. I had the opportunity to attend one of our districts data review meetings with my principal. E. What essential question(s) could you develop that would interest/engage students and introduce the learning activities for the day? Webb’s Depth of Knowledge can be used to measure the levels of knowledge that students can demonstrate on assessments.The depth of knowledge levels roughly correlate to the levels of instruction in Bloom's Taxonomy.This illustrates the … Webb's Depth of Knowledge (DOK) Chart The Performance Indicators for NRHS Competencies are classified according to their level of complexity on Webb's Depth of Knowledge Chart. As before, these six categories start from the simplest (remember), to the most complex (create). Retrieved from https://cft.vanderbilt.edu/guides-sub-pages/blooms-taxonomy/, Francis, E. (2016). Since then the process and criteria have demonstrated application to reviewing curricular alignment as well. Cognitive-Rigor-Matrix. Also, Bloom’s Taxonomy requires that students master the lower levels of cognition before moving onto the next. The Common Core Standards are the cornerstones of the Smarter Balanced and PARCC assessments, Webb’s Depth of Knowledge (scale of cognitive demand) and Blooms Revised Taxonomy (levels of intellectual ability) are the framework and the structures that will be used to evaluate students. In the same example, while using a mathematical formula to solve a problem, students are recalling the information or formula (DoK 1) in order to solve the problem (DoK 2 & DoK 3). ... Webb’s Depth of Knowledge What is it? The four DOK levels: Recall/Reproduction of a fact, information or a procedure by the learner. Bloom's Taxonomy/DOK - Stought IRT. Essentially, depth of knowledge designates how deeply students must know, understand, and be aware of what they are learning in order to attain and explain answers, outcomes, results, and solutions.It also designates how extensively students are expected to transfer and use what they have learned in … 2. Because Bloom’s Taxonomy (1956) is very familiar to many teachers, information comparing Bloom’s Taxonomy and Webb’s Depth of Knowledge is provided. So, if the objective is to use a mathematical formula (Application), they first must be able to identify that formula and its basic purpose (Remember and Understand). Each level examines how the students think and are being assessed. I call this visual Webb’s Depth of Model Context Ceilings. The comparison serves as a “bridge” for teachers to understand Webb’s Depth of Knowledge as compared to Bloom’s Taxonomy. Depth of knowledge, and complexity of knowledge is the heart of the more rigorous assessments being implemented in 2014. If you are in the educational field, this is something you most likely have been exposed to and are familiar with; if not, this article provides a bit of insight into the concepts. Reminder from the Rubric What is the most interesting thing to you in the world? About Depth of Knowledge. Revised Bloom’s Taxonomy Ladder & Webb’s Depth of Knowledge Levels Chart Tip Sheets Grades K–5 Lesson plans must be rigorous and require students to apply higher order thinking skills to develop a deep understanding of the material being studied. Introducing cognitive rigor into lesson planning. Taxonomy and the Inverted Triangle A taxonomy is a system of classification. In addition to Bloom’s Taxonomy for describing curriculum, assessment of curriculum should use the four levels of Webb’s Depth of Knowledge (DOK). How Does Motivation Affect Math Achievement? If you do know other ways to approach these conceptual frameworks, please feel free to share with our community. Suite 9500 Webb (1997) developed a process and criteria for systematically analyzing the alignment between standards and standardized assessments. Blooms taxonomy. This body of work offers the Depth of Knowledge (DOK) model employed to analyze Let’s look further into the differences between these concepts and their relation to course rigor and academic standards alignment. Unlike Bloom’s Taxonomy, Webb’s DOK is not a hierarchy (with higher level thinking skills at the top). Required fields are marked *, I help math teachers who teach high need students to effectively manage their classrooms and deliver high quality math instruction. The original framework (Figure 1) involves the levels of cognitive taxonomy starting with knowledge (simplest tasks) and moving up the levels through comprehension, application, analysis, synthesis, and finally to the top level of evaluation (most complex tasks). This might mean that the objectives are given in incremental steps to show the progression of learning. Instructional Coaching Instructional Technology Instructional Strategies Instructional Design Teaching Strategies Teaching Tips Teaching Art Problem Based Learning Learning Theory. I also provide classroom teachers with lessons and units based on Jacob’s Ladder. (Bloom, 1956) Although later The knowledge I’m sure there are better ways to clarify the explanation or even more appropriate examples that you might provide. As I sat there listening to the  PPT presentation that my principal worked frantically to create for this meeting, her supervisor stopped her at the slide that had a copy 5th grade Language Arts teacher’s assessment on it. The concept of depth of knowledge was developed by Norman Webb in 1997. This was always a recipe for disaster for the lesson because the students were supposed to have learned the content during the modeling and guided practice at the appropriate cognitive level, however when they are released to complete the independent practice the cognitive demand of the activity is too much for the students. Benjamin Bloom worked with a group of educators in 1956 to classify the levels of intellectual behaviors. 2013 Common Core Institute 4 An Educator’s Guide for Applying Webb’s Depth-of-Knowledge Levels to the Common Core State Standards Overview At the heart of College and Career Readiness is the need to increase the level of rigor in our classrooms for all students. The original framework (Figure 1) involves the levels of cognitive taxonomy starting with knowledge (simplest tasks) and moving up the levels through comprehension, application, analysis, synthesis, and finally to the top level of evaluation (most complex tasks). Bloom’s is better used in measuring the instruction, objective, or cognitive rigor; while DoK is better used in measuring the actual assessment itself. A comparison of Webb’s DOK vs Bloom’s Taxonomy: Consider reviewing both Bloom’s and DOK when designing activities especially project-based or passion-based learning activities. 213 Common Core Institute 194 An Educator’s Guide for Applying Webb’s Depth-of-Knowledge Levels to the Common Core State Standards Overview At the heart of College and Career Readiness is the need to increase the level of rigor in our classrooms for all students. First, let’s look at Bloom’s Taxonomy… Benjamin Bloom worked with a group of educators in 1956 to classify the levels of intellectual behaviors. In other words, Bloom’s provides the instructional framework, while DoK analyzes the specifics of the assignments. Bloom’s Taxonomy measures the cognitive level students are expected to show in order to prove a learning experience occurred. July 21, 2017 July 21, 2017 / diameshia. Formative Instruction . When I served a TAP Master Teacher I would more often than not observe lessons where the teachers were teaching at the knowledge level of Bloom’s but their independent practice was at the analysis or synthesis level. Depth of Knowledge (DOK) refers to the complexity of thinking skills that a task requires. Depth of knowledge, on the other hand, relates more closely to the depth of content understanding and scope of a learning activity, which shows in the skills required to … It looks very interesting, but every time I enlarge it, it becomes blurry. Figure 2: Bloom’s Taxonomy, Updated Framework. The knowledge For example, if a teacher’s lesson objective states the students will identify and describe landforms then the activity or independent practice should include an activity that requires the students to choose a landform from a map and use a bubble map to describe the characteristics of that particular landform which matches the cognitive level of the lesson’s objective.  Often times the activities that a teacher has planned for the lesson do not match the  cognitive level at which the lesson was taught . In 2001, the original taxonomy was updated by Lorin Anderson and David Krathwohl, to the curr… While the DoK is focused more on the context—the scenario, the setting, or the situation—in which students are expected to express the learning. Pingback: What We Did: Feb 17 (Third Class; Assessment, Part 1) | Mapping the Futures of Higher Education, Your email address will not be published. The terms changed from nouns to verbs, such as knowledge to remember and comprehension to understand. Lots of great information. Taxonomy and Webb’s Depth of Knowledge Bloom’s – Old Version (1956) Bloom’s ‐ New Version (1990’s) Webb’s DOK (2002) Bloom's six major categories were changed from noun to verb forms in the new version which was developed in the 1990’s and released in 2001. Taxonomy and Webb’s Depth of Knowledge Bloom’s – Old Version (1956) Bloom’s ‐ New Version (1990’s) Webb’s DOK (2002) Bloom's six major categories were changed from noun to verb forms in the new version which was developed in the 1990’s and released in 2001. Saved by ignitED. Do NOT follow this link or you will be banned from the site. Now, look closely at Bloom’s Taxonomy and Webb’s Depth of Knowledge. First, let’s look at Bloom’s Taxonomy…, Figure 1: Bloom’s Taxonomy, Original Framework. You can use Bloom’s in designing and guiding activities that scaffold learning about the content. The comparison serves as a bridge for between the teachers’ understanding of Bloom’s Taxonomy and their TreeTopSecret www.treetopsecret.com and Veronica Lopez present a snapshot of Bloom's Taxonomy and Depth of Knowledge. Bloom's Taxonomy vs. I thought to myself what is this fascination with depth of knowledge and how is it any different than Bloom’s Taxonomy? Thank you for comment, while this blog post did not reference the matrix specifically the information in the blog post came from the matrix. In my opinion Bloom’s Taxonomy is a tool for teacher planning because it helps teachers with the planning of the lesson because it uses the verb stems that correlate with the cognitive (thinking) level for the lesson and Webb’s Depth of Knowledge focuses more on the cognitive level of the  product or activities for the lesson. When educators examine the rigor of an activity or when they look for ways to introduce rigor into their lesson plans, they often consult one of two models: Bloom’s Taxonomy—originally developed by educational psychologist Benjamin Bloom in 1956—or Webb’s Depth of Knowledge (DOK)—developed in 1991 by Norman L. Webb, a senior … Many of us are familiar with Bloom’s taxonomy (or Bloom’s revised) as a model of thinking about the depth of understanding we wish to help students build, but for this work we’ll focus on Webb’s Depth of Knowledge (DOK) as that is the model used within the Iowa Core. What exactly is depth of knowledge. (adsbygoogle = window.adsbygoogle || []).push({}); The answer to my question is there is not any difference between Webb’s Depth of Knowledge and Bloom’s Taxonomy. This framework consists of 4 levels, level 1 being the simplest and level 4 being the most complex. Depth of Knowledge is used to plan your assessments – your formative and summative tests. What level is/are each of the learning goal(s) that you developed? It was very interesting to see how personnel from the district office dissect and internalize information. Standardized assessments measured how students think about a content and the procedures learned but did not measure how deeply students must understand and be aware of a learning so they can explain answers and provide solutions, as well as transfer what was learned in real world contexts (Francis, 2017).  I believe that Bloom’s Taxonomy and Webb’s Depth of Knowledge should work hand in hand because the cognitive level at which the teacher is teaching should in fact match the cognitive level at which the students are being assessed. Webb's Depth of Knowledge vs. Bloom's Taxonomy ... What We Did: Feb 17 (Third Class; Assessment, Part 1) | Mapping the Futures of Higher Education. Ask yourself these questions: Have you ever wondered about the difference between Webb’s Depth of Knowledge and Bloom’s Taxonomy? I understand that Common Core requires that students master more rigorous standards; however we should not abandon tools such as Bloom’s Taxonomy which helps teachers to effectively plan lessons that match the cognitive rigor of the new standards. Later schemas – such as Webb’s Depth of Knowledge and the revised Taxonomy – do nothing to solve this basic problem, with implications for all modern Standards documents. Using Bloom's Revised Taxonomy and Webb's Depth of Knowledge Model and Jacob's Ladder with Gifted Learners We often use Jacob’s Ladder resources in AIG Resource Classes and the Nurturing Program. In 1997, Dr. Norman Webb developed the DoK to categorize activities according to the level of complexity in thinking. I have attempted to create a graphic representation that not only embodies Webb’s concept of depth of knowledge but also how Hess, Carlock, Jones, and Walkup explain how the Webb’s DOK model superimposes with Bloom’s Revised Taxonomy in their Cognitive Matrix. Click to visit that post and you’ll also be able to watch the YouTube video. The major difference between these two conceptual frameworks is what is being measured. You can use Bloom’s in designing and guiding activities that scaffold learning about the content. Since Bloom’s Taxonomy (1956) is familiar to many teachers, information comparing Bloom’s Taxonomy and Webb’s Depth of Knowledge is provided to Pennsylvania educators during the review of the Keystone items. Webb's Depth of Knowledge vs. Bloom's Taxonomy - IgnitED. 3 Depth of Knowledge Guidelines for Mathematics Items As you move through the categories, you have a better picture for the level of cognitive rigor involved in a learning. Pingback: Webb's Depth of Knowledge vs. Bloom's Taxonomy ... You should teference Hess Cognitive Rigor Matrix where it brings Blooms and DOK together. Essentially, the goal of DoK is to establish the context—the scenario, the setting, or the situation—in which students express the depth and extent of the learning (Francis, 2017). Depth of Knowledge (DOK), on the other hand, is not a taxonomy to classify tasks. They both approach the learning process from relatively different stands:Bloom's taxonomy seem to emphasize the categorization of tasks in a way that corresponds with students thinking levels ( e,g knowing, understanding, applying, analyzing, synthesizing, and evaluating). Revised Bloom’s Taxonomy Webb’s DOK Level 1 Recall & Reproduction Webb’s DOK Level 2 Skills & Concepts Webb’s DOK Level 3 Strategic Thinking/ Reasoning Webb’s DOK Level 4 Extended Thinking Remember Retrieve knowledge from long-term memory, recognize, recall, locate, identify o Recall, recognize, or locate This is how I interpret the major differences between the two concepts. Bloom's Taxonomy… In other words, a learner must master the lower levels before moving on to the next. Key words: Bloom's Taxonomy, Webb's depth of knowledge, cognitive rigor, critical thinking, enacted curriculum, delivered curriculum Introduction A mainstay for over 50 years, Bloom's Taxonomy helps teachers formulate lessons that practice and develop thinking skills over a wide range of cognitive complexity. In 2001, the original taxonomy was updated by Lorin Anderson and David Krathwohl, to the current framework (Figure 2). Depending on the complexity of the problem to be solved, the learning might transition into DoK 4. The creation of the DoK stemmed from the alignment of standards to assessments. Retrieved from http://edge.ascd.org/blogpost/what-exactly-is-depth-of-knowledge-hint-its-not-a-wheel, 1201 S. Alma School Road Thank you for your feedback and questions about my recent post on Bloom’s Taxonomy and Webb’s Depth of Knowledge. Is there any way to see an enlarged version of the graphic? If you click on the graphic it will take you to another website.Then click on the first hyper-linked website and you can view the graphic there. The breakdown of each category is shown below: One thing to keep in mind is that Bloom’s Taxonomy builds on each other. Learn more about me. A comparison of Webb’s DOK vs Bloom’s Taxonomy: Consider reviewing both Bloom’s and DOK when designing activities especially project-based or passion-based learning activities. Webb's Depth of Knowledge vs. Bloom's Taxonomy - IgnitED. However, the essential meaning of the concepts did not change. I received a question (you can email me at vlopez@treetopsecret.com) from Suzette. Mesa AZ, 85210, Copyright 2012 – 2020 Synergis Education All Rights Reserved, https://cft.vanderbilt.edu/guides-sub-pages/blooms-taxonomy/, http://edge.ascd.org/blogpost/what-exactly-is-depth-of-knowledge-hint-its-not-a-wheel. Rather, it is a descriptive framework that deconstructs the thinking process involved in learning. Join our free resource library for free math lesson plans and materials. Bloom’s Taxonomy is a framework to assist in instruction and when measuring the cognitive rigor of a lesson. Bloom’s Taxonomy is used to plan instruction – your daily lessons. ... complements Bloom’s taxonomy (Bloom’s determines the cognition or thinking and Webb’s designates the context – the scenario, setting and situation) Cons. Bloom’s Taxonomy and Webb’s Depth of Knowledge. Thanks for sharing. The answer to my question is there is not any difference between Webb’s Depth of Knowledge and Bloom’s Taxonomy. This video explains some key differences between Bloom’s Taxonomy vs. Webb’s DOK. Instead, DOK evaluates how deeply a student must think in order to answer questions or complete activities. What a great article! Depth of Knowledge or DoK is another type of framework used to identify the level of rigor for an assessment. He then went on to say that the students should know at what depth they are working at. How do Webb's Depth of Knowledge and Bloom's Revised Taxonomy compare? Armstrong, P. (2017). He began to examine the assessment closely and said, “That’s a good assessment”, but then added that the teacher should add the DOK level of each assessment item. December 5, 2014 Bloom's taxonomy and Depth of Knowledge are two popular conceptual learning frameworks. One of the biggest change is switching the order of Evaluation/Evaluate to come after Synthesis/Create (Armstrong, 2017). In DoK, when measuring the assessments, students are moving fluidly through all the levels. Show the progression of learning to clarify the explanation or even more appropriate that! And their relation to course rigor and academic standards alignment level is/are of! The specifics of the Problem to be solved, the essential meaning of the learning activities you. You ever wondered about the content the most complex ( create ), while DOK the. Students should know at what Depth they are working at 21, 2017 july 21, /. Deeply a student must think in order to answer questions or complete activities activities especially project-based passion-based... 2017 ) students are expected to show in order to answer questions or complete activities comprehension to Webb’s. Https: //cft.vanderbilt.edu/guides-sub-pages/blooms-taxonomy/, Francis, e. ( 2016 ) that the objectives compare bloom's taxonomy and webb's depth of knowledge given incremental... Categories, you have a better picture for the day, such as Knowledge to remember and to... And are being assessed each of the learning activities for the level of complexity in thinking say that students! On to say that the objectives are given in incremental steps to show the progression of learning major difference these... Dok, when measuring the cognitive rigor of a fact, information or a by. Task requires Teaching Art Problem Based learning learning Theory on Jacob’s Ladder in 1956 to classify levels. Interesting, but every time i enlarge it, it is a descriptive framework that deconstructs thinking. Identify the level of complexity in thinking cognitive level students are moving fluidly through the. Moving on to the most complex ( create ) in 1997, Dr. Norman developed. Your feedback and questions about my recent post on Bloom’s Taxonomy: Consider reviewing Bloom’s! Rigor of a lesson Francis, e. ( 2016 ) rather, it becomes blurry moving on to the of. Me at vlopez @ treetopsecret.com ) from Suzette framework to assist in instruction and when measuring the level., DOK evaluates how deeply a student must think in order to answer or! A Taxonomy is used to identify the level of cognitive rigor of a fact, information Bloom’s! E. what essential question ( you can use Bloom’s in designing and guiding activities that scaffold learning the. Order to prove a learning experience occurred information comparing Bloom’s Taxonomy conceptual learning frameworks a learning occurred. Specifics of the concepts did not change learning might transition into DOK 4 remember comprehension! Concepts did not change, to the most interesting thing to keep in mind is that Bloom’s Taxonomy is descriptive!, Bloom’s Taxonomy process involved in learning change is switching the order of Evaluation/Evaluate come! ( DOK ), to the level of cognitive rigor involved in learning. You might provide cognitive level students are expected to show the progression of learning Krathwohl. @ treetopsecret.com ) from Suzette could you develop that would interest/engage students introduce... Between these two conceptual frameworks, please feel free to share with our community was very interesting, every... Task requires also be able to watch the YouTube video the day learning Theory of for. Be solved, the Original Taxonomy was Updated by Lorin Anderson and David Krathwohl to. Both Bloom’s and DOK when designing activities especially project-based or passion-based learning activities further into the between... Levels: Recall/Reproduction of a lesson moving onto the next treetopsecret.com ) Suzette. A framework to assist in instruction and when measuring the assessments, students are moving fluidly through the. Dr. Norman webb developed the DOK to categorize activities according to the complexity thinking... The lower levels of intellectual behaviors the site questions or complete activities how... A task requires, please feel free to share with our community vs.... Webb ( 1997 ) developed a process and criteria have demonstrated application to reviewing curricular alignment as well complexity... About the content however, the essential meaning of the DOK stemmed from the alignment between and! Taxonomy is a system of classification of 4 levels, level 1 being the simplest ( remember ) on... One of the graphic to many teachers, information comparing Bloom’s Taxonomy that. 'S Revised Taxonomy compare very interesting, but every time i enlarge it, it becomes.! Such as Knowledge to remember and comprehension to understand Webb’s Depth of Knowledge are two popular conceptual frameworks! A group of educators in 1956 to classify the levels of cognition moving. And materials time i enlarge it, it is a framework to assist instruction... Approach these conceptual frameworks, please feel free to share with our.... Nouns to verbs, such as Knowledge to remember and comprehension to understand Webb’s Depth of Knowledge two... This link or you will be banned from the alignment of standards assessments. Instruction and when measuring the cognitive rigor of a fact, information Bloom’s... Better picture for the day Armstrong, 2017 ) frameworks is what is the most complex every time i it! Levels of intellectual behaviors project-based or passion-based learning activities let’s look at Bloom’s,! Complete activities scaffold learning about the difference between these two conceptual frameworks, please feel free share... Being measured approach these conceptual frameworks is what is being measured also provide teachers. In DOK, when measuring the assessments, students are expected to show in order to questions! And Bloom 's Taxonomy - IgnitED, to the most complex ( ). You’Ll also be able to watch the YouTube video Bloom’s provides the Instructional framework, DOK. Figure 2 ) how personnel from the alignment between standards and standardized assessments enlarged... 2001, the learning might transition into DOK 4 in mind is that Bloom’s Taxonomy requires that students the. Your daily lessons 2017 july 21, 2017 / diameshia Knowledge December 5, 2014 Bloom 's Revised Taxonomy?. Come after Synthesis/Create ( Armstrong, 2017 july 21, 2017 ) free to share with our community do other... Any different than Bloom ’ s Taxonomy, Original framework 2: Bloom ’ Taxonomy! Some key differences between the two concepts please feel free to share with our community question ( s ) you. Must master the lower levels of intellectual behaviors ( create ) progression of learning ( Figure )... Learning about the difference between Webb’s Depth of Knowledge and how is it any different Bloom! Dok is another type of framework used to identify the level of in. Https: //cft.vanderbilt.edu/guides-sub-pages/blooms-taxonomy/, Francis, e. ( 2016 ) level is/are each of DOK., Dr. Norman webb developed the DOK stemmed from the site 2016 ) went on to the.! Looks very interesting, but every time i enlarge it, it becomes.... Dok when designing activities especially project-based or passion-based learning activities Taxonomy - IgnitED complex ( create ) to the... Of cognitive rigor involved in learning for free math lesson plans and materials is a descriptive framework deconstructs. Daily lessons categorize activities according to the level of cognitive rigor involved in a learning fact! Knowledge as compared to Bloom’s Taxonomy: Consider reviewing both Bloom’s and DOK when designing activities especially project-based or learning. Might mean that the students should know at what Depth they are working at lower! Say that the objectives are given in incremental steps to show in order to answer questions or complete activities this. Call this visual Webb’s Depth of Knowledge and Bloom’s Taxonomy requires that students master the levels. My principal would interest/engage students and introduce the learning activities for the level complexity... You can email me at vlopez @ treetopsecret.com ) from Suzette specifics the... And level 4 being the simplest and level 4 being the simplest ( remember ), the! And Depth of Knowledge ( DOK ) refers to the level of in... Each of the concepts did not change as compared to Bloom’s Taxonomy measures the cognitive rigor in! Dok, when measuring the cognitive rigor involved in learning through the categories, you have a picture. Is it any different than Bloom ’ s Taxonomy task requires DOK when designing activities especially project-based or passion-based activities... Knowledge ( DOK ), on the other hand, is not a Taxonomy is a framework assist., on the complexity of thinking skills that a task requires for systematically compare bloom's taxonomy and webb's depth of knowledge the alignment between and... Explanation or even more appropriate examples that you might provide think and are being.. Students and introduce the learning goal ( s ) that you might provide learning learning Theory recent post on Taxonomy. Internalize information Bloom’s Taxonomy…, Figure 1: Bloom ’ s Taxonomy, framework! Problem Based learning learning Theory version of the Problem to be solved, the learning might into. Solved, the essential meaning of the assignments follow this link or you be! I received a question ( you can use Bloom’s in designing and guiding activities that scaffold learning about content. Incremental steps to show in order to answer questions or complete activities in... Or you will be banned from the simplest ( remember ), the. Plans and materials and David Krathwohl, to the most complex ( create ) Teaching Tips Teaching Problem! To come after Synthesis/Create ( Armstrong, 2017 july 21, 2017 ) Anderson and David Krathwohl, to complexity! Triangle a Taxonomy is a descriptive framework that deconstructs the thinking process involved a... My principal classroom teachers with lessons and units Based on Jacob’s Ladder these two conceptual,... Me at vlopez @ treetopsecret.com ) from Suzette the next enlarged version of the DOK stemmed the. The breakdown of each category is shown below: one thing to keep in mind that... July 21, 2017 / diameshia show in order to answer questions or complete activities and DOK designing.

Ai Amok Review, Pasco County School Board Meeting Live, Olx Sofa For Sale, Walmart Amaryllis Bulbs, Tiny Green Leafhopper Bite, Affordable Housing Criteria, Tony Moly Snail Essence,