Evaluation for 3.2a
Materials include explicit (direct) prompts and guidance for educators to build knowledge by activating prior knowledge, anchoring big ideas, and highlighting and connecting key patterns, features, and relationships through multiple means of representation.
The grade 7 materials include explicit prompts and guidance for educators to anchor big mathematical ideas during instruction. In the Constant of Proportionality and Tables puzzle talk, educator guidance includes discourse questions and instructional explanations that guide educators in helping students determine a unit rate, represent ratios as fractions, and identify the constant of proportionality. For example, educators ask, “What do you notice when you reduce the fraction to its lowest form?,” and use the educator guidance explaining that “when the unit rate in a table is the same, or constant, for all the rows of the table, we call it the ‘constant of proportionality.’” These prompts guide educators in emphasizing the central idea that proportional relationships are defined by a constant unit rate.
The grade 7 materials include explicit prompts and guidance for educators to highlight and connect key features, relationships, and patterns through multiple means of representation. In the Constant of Proportionality and Tables puzzle talk, look-fors and discourse questions guide educators in helping students represent proportional relationships using tables, ratios, fractions, unit rates, equations, and animations. For example, educators prompt students to write the ratio of bananas to monsters as a fraction, identify the unit rate, and explain how the constant of proportionality relates to every row in the table. Educators use the look-fors to monitor students as they connect equivalent fractions, such as 6/2 and 12/4, to the constant ratio of 3/1, reinforcing the relationships among fractions, tables, and proportional reasoning. In the Constant of Proportionality and Tables puzzle talk, students identify patterns in proportional relationships by analyzing how quantities change together across multiple rows of the table. Educators ask students, “What number goes here? How do you know?” and “How can you use the unit rate to determine the missing values in the table?” Students recognize patterns, such as multiplying the number of monsters by a constant value to determine the number of bananas, pears, pies, or fish-food portions, and verify those patterns through tables, fractions, unit rates, and visual animations. The discourse questions and look-fors guide educators in helping students connect these repeated multiplicative patterns across representations.
The materials do not include explicit prompts or guidance for educators to activate students’ prior knowledge before instruction. Although the lesson-planning resources include Notice and Wonder and Predict and Justify routines that reference prerequisite concepts, the materials do not direct educators to intentionally elicit or build on students’ existing understanding before introducing new grade-level content.