DLI 4th Grade Guide

4th Grade Math Scope & Sequence

End of Unit Competency and Language Supports

By the end of Topic 16 students will be able to explain how to classify triangles and quadrilaterals and defne line symmetry. Language Functions and Features: Describe data and/or steps to solve problems using: ● Mathematical terms ( lines, triangles, shape, quadrilateral, angle, sides, classify, parallel, perpendicular, trapezoid, acute, obtuse, equilateral, symmetry, intersect, ) ● Visuals ( drawings, diagrams ) to support classifcation and/or extract information ● Observations ( notice, it appears, looks like ) and comparative language ( different from, similar to, the same as )) to share results (eg. The lengths of the sides of the triangle are.. .) Generalize commonalities and differences using: ● Conditional clauses (when, if) to extend conjecture (eg. If all sides of the quadrilateral are equal, then…

SKILLS

VOCABULARY

MANIPULATIVES

● Use line

● parallel lines ● perpendicular lines ● intersecting lines ● right triangle ● obtuse triangle ● acute triangle ● equilateral triangle ● isosceles triangle

● scalene triangle ● parallelogram ● rectangle ● square ● rhombus ● trapezoid ● line symmetric ● line of symmetry

No particular manipulatives listed for this topic.

relationships in classifying quadril. ● Classify triangles and quadrilaterals ● Recognize and draw line-symmetric fgures

enVision 2020 Curriculum Supports

STEM Project: Animal Senses Pick a Project: Noah Webster’s Dictionary, Dali Museum, Snowfakes, Symmetry in Animals

16-1 Lines 16-2 Classify Triangles 16-3 Classify Quadrilaterals 16-4 Line Symmetry

16-5 Draw Shapes with Line Symmetry 16-6 Problem Solving: Critique Reasoning