Evaluation for 5.3c
Materials include supports for students in connecting, creating, defining, and explaining concrete and representational models to abstract (symbolic/numeric/algorithmic) concepts, as required by the TEKS.
The grade 4 materials include supports for students in connecting and creating concrete models to abstract mathematical concepts, as required by the TEKS. For example, in Lesson 6-9:"Understand Mixed Numbers," students create and connect fraction number line representations and fraction strips to deepen their understandings required in TEKS 4.1C, "select tools, including real objects, manipulatives, paper and pencil. . .as appropriate, to solve problems." The grade 4 materials include supports for students in connecting and creating representational models to abstract (symbolic/numeric/algorithmic) concepts, as required by the TEKS. For example, Lesson 7-1: "Decompose Fractions" connects area models, number lines, and algorithmic representations of decomposing fractions, as required by TEKS 4.3B, "decompose a fraction in more than one way. . .using concrete and pictorial models and recording results with symbolic representations." The grade 4 materials include supports for students in defining and explaining concrete models to abstract (symbolic/numeric/algorithmic) concepts, as required by the TEKS. For example, in Lesson 8-1: "Ways to Think About Subtraction Represent Fractions as Decimals," students use decimal grids and coins to build their understanding of representing fractions as decimals, as required in TEKS 4.2E, "represent decimals, including tenths and hundredths, using concrete and visual models and money." The grade 4 materials include supports for students in defining and explaining representational models to abstract (symbolic/numeric/algorithmic) concepts, as required by the TEKS. For example, in Lesson 4-3: "Strategies for Multiplying 2-Digit Numbers," students solve problems with an emphasis on arrays and area models to understand the relationship between square units and total product, as required in TEKS 4.4(C) represent the product of two‐digit numbers using arrays, area models, or equations, including perfect squares through 15 by 15."