# PS 42X Kinder Unpacking Chapters 2 and 3

### Chapter 2: Comparing Numbers to 5

Weave this unit into chapter 3 by doing centers. Focus on evaluating Stage 4 fluencies.  This unit prepares students for comparison of numbers, but also the comparison for comparison word problems. The vocabulary is key: same/equal amount, compare, greater, less than, fewer.

Structure: Teach centers for a few days, then go into chapter 3. You would set time to do centers for chapter 2 while continuing with chapter 3 lessons.

Tools: Ten-frame, two colored counters

Guided Group:

• Counting Blastoff, pg. 80 – adapt to tell 1 more or 1 less. Ideally what a student might say, “I rolled a 5. One less is 4. Five is greater than 4. Four is less than five.” (Needs a song or a beat.) See “Advanced Learners” on page 88.
• Chapter 2 Vocabulary Game, pg. 80A – Do Not Do! (unless your students are reading).

Centers:

• Write numbers on sand paper.
• Lesson 2.1: “Match Mine” Kagan strategy. Student says, “I have 4 spaces filled on top. I have the same amount in the bottom five-frame. Match Mine.”
• Lesson 2.2 & 2.3: Penny Grab. Directions: Grab some pennies or cubes. Place on ten frames. Who has the greater amount. Who has fewer? Adapt and connect to Lesson 3.1.
• Lesson 2.4: Build and compare. Mix, Freeze, Build, and Compare. (Slides) Flash number by color and have students build and compare.
• Lesson 2.5: Advanced Learners, pg. 106 game to compare amounts.

### Chapter 3: Represent, Count and Write Number 6 to 9

This unit needs to focus on understanding quantities. You need to same structures for 8 days, but rotate students through. Focus on different ways to make a certain amount. Build on concepts of inequalities and comparison. Focus on the discourse and video tape students in action and making corrections of other students.

• Make anchor charts to show the various ways to make a certain amount. Model the anchor charts of various ways to make certain amounts in ten-frames and in sequential order. Use two different colored counters.

Materials: dominoes, index cards, sandpaper, counters (various kinds)

Tools: ten-frame, number bonds, number bead strings

Look at all the Advanced Learners. Make into centers:

• Lesson 3.1: Roll and Compare. Works for lesson 3.8 as well.
• Lesson 3.2: Color and count. This is preparation for area concepts.
• Lesson 3.3: Spin and Build. Adapt to add on or take away. Counting amounts each time.
• Lesson 3.7: That is a Way, but Not My Way

Problem Solving Focus: Both Addends Unknown, pg. 88 CCSS e.g. Grandma has five flowers. How many can she put in her red vase and how many can she put in her blue vase?

Idea:

• Add to your math museum and have students make comparison statements.
• Have a domino find center, where students have to find amounts based upon the focus of that center.

Kagan Structures: Find Someone Who, Match Mine, Showdown, Rally Coach

Kim Sutton: Bump-it Subitizing (need dice)