7th grade Math Guide

SCALE DRAWINGS

Unit 1

PACING

KEY LANGUAGE USES

Option 1: September 16 - October 8 (16 days) Option 2: September 11 - October 9 (20 days)

EXPLAIN

STANDARDS

● Standard 7.G.1 Solve problems involving scale drawings of geometric figures, including computing actual lengths and areas from a scale drawing and reproducing a scale drawing at a different scale. ● Standard 7.G.6 Solve real world and mathematical problems involving area, volume, and surface area of two- and three-dimensional objects composed of triangles, quadrilaterals, polygons, cubes, and right prisms.

END OF UNIT COMPETENCY WITH LANGUAGE SUPPORTS

I can find the actual distance between two points on a map and explain how I got the distance. Language Supports: ● Vocabulary (scale, distance)

I can make a scale drawing of a bedroom. Language Supports: ● Vocabulary (scale factor, dimension, etc.)

DIFFERENTIATION IN ACTION

Skill Building

From Activity 4.2: MLR 7 Compare and Connect. Use this routine to call attention to the different ways students may identify scale factors. Display the following statements: “The scale factor from EFGH to IJKL is 3,” and “The scale factor from EFGH to IJKL is 1/3.” Give students 2 minutes of quiet think time to read and consider whether either or both of the statements are correct. Invite students to share their initial thinking with a partner before selecting 2 – 3 students to share with the class. In this discussion, listen for and amplify any comments that refer to the order of