Evaluation for 5.2c
Materials provide opportunities for students to evaluate mathematical representations, models, strategies, and solutions for efficiency, flexibility, and accuracy throughout learning pathways.
The materials focus on students arriving at accurate and efficient solutions. For example, in the Guided Practice in alessonondivision of whole numbers, a hint is given to students to use compatible numbers. There is an explanation to reinforce efficiency, such as, "Although 215 properly rounds to 220, when using compatible numbers, we are looking for easier computation. In this case, 215 is also close to 210, which is a number easily divided by 7."Thegrade 4materials engage students in evaluating the accuracy of solutions by identifying and explaining errors in a multiplication algorithm problem. For example, in Unit 3, theexit passasks students, "What needs to be changed in the equation so that it matches the word problem? Solve the word problem once you fix the equation."The lessons in thegrade 4materials allow students to evaluate mathematical representations, models, strategies, and solutions for flexibility through learning pathways. In Unit 4, students are presented with the opportunity to share which division strategytheypreferto use and why.