SALTA 4th grade

4.OA.5

Strand: Operations and Algebraic Thinking

Topic 14: Algebra: Generate and Analyze Patterns Pick a Project: • Roller Coasters • Exchanging Currency • Sidewalk Art • Rogers Centre No 3-Act Math Task for Topic 14 14-1 Number Sequences 14-2 Patterns: Number Rules 14-3 Patterns: Repeating Shapes 14-4 Problem Solving: Look For and Use Structure

Topic 14:

Fourth grade students generate and analyze numeric and shape patterns.

• rule • repeating pattern

Standard 4.OA.5 Generate a number or shape pattern that follows a given rule. Identify apparent features of the pattern that were not explicit in the rule itself. For example, given the rule "add 3" and the starting number 1, generate terms in the resulting sequence and observe that the terms appear to alternate between odd and even numbers. Explain informally why the numbers will continue to alternate in this way.

Topic 14 Manipulatives • Pattern Blocks •

Centimeter grid paper

Assessment Options: Topic 14 Assessment - Algebra: Generate and Analyze Patterns Topic 14 Performance Assessment – Algebra: Generate and Analyze Patterns Team Created Assessment Assessment Tasks – Topic 14 Procedural Check

Application Task

4.OA.5

Fill in the missing number for each pattern and write the rule.

Tara used toothpicks to design this pattern. Each day she continued the pattern. How many toothpicks will she need to make her design on the 9 th day?

1. 2, 4, ___, 10, 12, ___ 2. 6, 12, ___, 24, ____, ____ 42 3. 4, ___12, ____, 20, ____ 4. ____, 20, 30, ____, ____, 60 5. 12, ____, ____, 48, 60, ____ 6. 15,18, ____, ____, ____, 30

Write the rule for the pattern and draw the pattern to justify your answer. (DOK3)

(DOK 2)