Lesson 7

Patterns on the 100 Chart

Est. Class Sessions: 2–3
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Mathematical Standards

1.NBT.B
Understand place value. (1.NBT.B.2)
1.OA.C
Add and subtract within 20. (1.OA.C.5)

Standards for Mathematical Practice

MP2.
Reason quantitatively.
MP3.
Construct viable arguments and critique the reasoning of others.
MP7.
Look for and make use of structure.
MP8.
Look for and express regularity in repeated reasoning.

Students review sorting and counting by tens. They work from ten frames and trains of 10 cubes to construct a 50 Chart. The goal is to show the relationship between groupings of tens and ones and the sequence of two-digit numbers on the 50 Chart. Students locate and record selected numbers on the chart, eventually filling it all in. Moving to the 100 Chart, students identify number patterns and discuss number relationships.

Content in this Lesson

  • Representing two-digit numbers using the language of tens and leftover ones (e.g., 4 tens and 3 leftover ones) and conventional names (e.g., 43).
  • Connecting representations of quantities with connecting cubes, 100 Charts, and number lines.
  • Reading and writing numbers to 50 [E2].
  • Counting forward and backward by ones, twos, fives, and tens [E1].
  • Identifying even and odd numbers.
  • Identifying, describing, and extending repeating patterns on the 100 Chart and number line [E3].
  • Identifying the pattern unit in a repeating pattern [E5].
  • Checking a solution for reasonableness [MPE3].
  • Showing my reasoning [MPE5].
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Materials for Students

Daily Practice and Problems Lesson Homework Assessment

Student Book

 Student Activity Book

Teacher Resources

 Teacher Guide - digital

Supplies for Students

Two completed Name Grid pages from Lesson 6

Supplies for Student Pairs

100 connecting cubes

Materials for the Teacher

Display of Ten Frames and Number Line Master (Teacher Guide)
Display of 50 Chart (Student Activity Book) Page 261
Display of 100 Chart (Student Activity Book) Reference or Page 79, 4–5 copies
Display of completed Name Grid page from Lesson 6
Unit 9 Assessment Record
50 connecting cubes
chart paper
highlighter or display of 50 colored tiles (to represent connecting cubes), optional

Materials Preparation

Prepare Desk-Size 100 Charts. Starting with this lesson and continuing throughout the year, students should have ready access to a 100 Chart. For this reason, there is a 100 Chart in the Reference section of the Student Activity Book and a Desk-Size 100 Chart Master. This can be copied and taped to each student's desk or laminated and attached to students' folders. You may also copy the 100 Chart page and the Ten Frames and Number Line page back to back on heavy paper for use at home and at school.

Name Grids from Lesson 6. Students will need the two name grids they made in Lesson 6. Identify and prepare to display a name grid showing a name that has five letters. Students will compare their name grid patterns to the patterns on the 100 Chart.

Prepare Mystery Number as Optional Targeted Practice. Prepare your own clues to continue to play Mystery Number or ask students to write their own clues for a mystery number. Cut apart the numbers on a 100 Chart and place them in a container. Each student should choose a mystery number and write clues for other students to use to guess their mystery number.

Assessment in this Lesson

Assessment Expectation Assessed Math Practices
Expectation Assessed
Patterns in Numbers
Student Activity Book
Pages 265–267
E3. 
Identify, describe, and extend repeating patterns on the 100 Chart and in lines of objects.
E4. 
Identify, describe, and extend growing patterns on the 100 Chart and on number lines.
E6. 
Represent patterns using objects, pictures, number lines, 100 Chart, words, and symbols.
MPE3. 
Check for reasonableness. I look back at my solution to see if my answer makes sense. If it does not, I try again.
MPE5. 
Show my work. I show or tell how I arrived at my answer so someone else can understand my thinking.

Vocabulary in this Lesson