1. Recognizing the Counting Sequence
You may have noticed that Unit 14’s GCG’s look different from the previous units. Unit 14 was provided as a way to strengthen student understanding of the critical area place value. Your student’s performance on the Unit 7 Assessment and Performance Task will be your guide for the activities you select as you progress through this unit.
Recognizing the Counting Sequence
Unit of Study: Strengthening Critical Area: Place Value
Global Concept Guide: 1 of 3

2. Content Development
1.NBT.5 builds on students’ work with tens and ones and requires them to understand and apply the concept of 10 by mentally adding ten more and ten less than any number less than 100. This understanding leads to future place value concepts. It is critical for students to do this without counting. Prior use of models such as base ten blocks, number lines, and 100 charts helps facilitate understanding. Ample experiences with ten frames will also help students see the pattern involved when adding or subtracting 10 and USE these patterns to solve such problems.

3. Day 1
Allow students to reinforce their current understanding with a number chart on Day 1 using activities like the ones that follow:
Hundreds Board Pictures Activity- Riddles that lead students to create pictures on a Hundreds Chart
Scrambled Hundreds Board- Cut apart a hundreds board and have students put it back together
100 Chart Activities – Activity 10 – Use a 100 chart to find 10 more/10 less

4. Day 2
Students should be able to use strategies learned during the course of the year to mentally count 10 more and 10 less than a number. Have students work together and monitor students’ responses.
Ten More Ten Less game – Students choose a number from a deck and spin to state 10 more or 10 less.

5. Monitoring Progress Gathering Data Through Observation
Frequently move through the room observing partners as they practice mentally counting 10 more or less. Listen to their discussions to gain insight into their understanding and mastery. Jot down observations (Classroom Observation log)to help plan interventions, adjustments to lessons, or task modifications.
Exit Tickets can be used to monitor progress each day. Take opportunities to look at students responses and conference with students about their thinking.
Exit Ticket 1
Exit Ticket 2