SALTA 2nd grade

Focus

Standards

Curriculum Supports – enVision 2020

Vocabulary

2.MD.5 2.MD.6

Strand: Measurement and Data

Topic 14: More Addition, Subtraction, and Length Pick a Project: • Ferris Wheel • Getting Buggy! • Measurement Tools • Growing Food No 3-Act Math Task for this Topic 14-1 Add and Subtract with Measurements 14-2 Find Unknown Measurements 14-3 Continue to Find Unknown Measurements

Topic 14:

No new vocabulary words

Second grade students will relate addition and subtraction to length.

Review as needed

Standard 2.MD.5. Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same units. For example, use drawings (such as drawings of rulers) and equations with a symbol for the unknown number to represent the problem. Standard 2.MD.6 Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1, 2, ... Represent whole-number sums and differences within 100 on a number line diagram.

14-4 Add and Subtract on a Number Line 14-5 Math Practices and Problem Solving: Use Appropriate Tools

Topic 14 Manipulatives: • Centimeter ruler • Meter stick • Counters • Inch rulers • Yardsticks • Measuring tapes • Ones cubes • String

Assessment Options: Topic 14 Assessment – More Addition, Subtraction, and Length (print or online) Topic 14 Performance Assessment – More Addition, Subtraction, and Length Team Created Assessment

Assessment Tasks – Topic 14 USBE 2 nd Grade Standards Assessments

Procedural Check

Application Task

2.MD.5

Use a drawing and write an equation to solve the problem and justify your answer

There are two ribbons. The total length of the two ribbons is 97 centimeters. The longer ribbon is 55 centimeters. Find the length of the shorter ribbon. (DOK 3)

A snake was 35 inches long. Now it is 60 inches. How much did the snake grow? Use the number line to justify your answer.

(DOK 2)