Transcript u6g1

Related Facts
Unit of Study: More Addition & Subtraction Strategies
Global Concept Guide: 1 of 3
Content Development
Content Development
 Students are exploring facts and how they are related through hands-on
activities and acting out problem situations.
 It’s important to help students build a deeper understanding about how the
facts relate rather than simply filling in a blank with a number.
 Example: 17 + 3 = 20, 20 – 17 = ____. Students should be able to justify why 3 is the
answer to the second fact in relation to what they know about the first fact. It is not
enough for them to say “I know 3 is the answer because it’s the other number”.
Day 1
 Go Math Lesson 5.2 Record Related Facts
 Listen and Draw on p. 5 – students will build models using 2
different color snap cubes
 Discuss the relationship between the addition and subtraction
problems
 Go Math Lesson 5.3 Identify Fact Families
 Focus on Model and Draw p.194
 HOT question #14 on p. 196
Day 2
 Excursions: All Aboard
 In this lesson, children investigate fact families. They begin by
cutting out numeral and operation symbol train cards and make fact
family trains. Then they continue with snap-cube modeling and the
recording of number sentences. Pairs roll dice to find addends and
record their fact family.
 Go Math Lesson 5.5 Algebra - Missing Numbers
 P. 201 - 204
Day 3
 Illuminations - Do it with Dominoes Lesson 6: Finding Fact
Families
 Read the book Ten Sly Piranhas. Students listen to the story and act
out the situations with 2-color counters, writing the number
sentence to match.
 Students then find a domino that shows the related fact and write
the related fact.
 Go Math Lesson 5.6 Algebra – Use Related Facts
 p. 205 – 208
 Additional Practice
 Triangular Fact Cards (Mountain Cards from Go Math kit)
 Students use cards to write related facts
 Use as an independent, partner or a center task (TE p. 205B Tier 2
Intervention)
Enrich/Reteach/Intervention
 Reteach/Intervention
 Go Math: Chapter 5 TE p. 193B Tier 2 Intervention
 Go Math: Chapter 5 TE p. 205B Tier 1 Intervention
 Go Math: Chapter 5 R41 – use 2-color counters to model related
facts
 Enrich
 Go Math: Chapter 5 E41 - students write the missing number to
solve the riddle and then 2 related facts
 Using triangle fact cards (Mountain Cards), students draw a bar
model to represent the related facts.
 Cuisenaire Rod and Triangle Card Related Fact Building
Literature for your Classroom Library