MAFS.K.CC.1.1: Count to 100 by ones and by tens.

Cognitive Complexity Level: 1-Recall

[divider] [/divider] Students are able to… 

  • Sequentially count to 100 by ones.
  • Sequentially count to 100 by tens.
  • Recognize patterns that make up the counting sequence.
  • Match the number name the written numeral.

[divider] [/divider] Students are able to…because teachers:

  • Provide visual aids such as hundreds charts and number lines.
  • Guide students to see patterns in the counting sequence as students count by ones and tens.
  • Give frequent practice for students to count by ones and tens.
  • Introduce students to sets of numbers as they learn to rote count.
  • Use a hundreds chart to help students count across decades.  (ie. 19-20, 29-30, etc.)

 [divider] [/divider] Questions to ask students:

  • Ask:  What patterns do you notice as you count by ones to 100?
    • Sample answer that indicates understanding: The ones place is increasing by one each time.
  • Ask:  What patterns do you notice as you count by tens to 100?
    • Sample answer that indicates understanding:  The tens place is increasing by one ten each time, while the ones place stays the same.
  • Ask:  How could you represent the number 18?  Use counting to prove your thinking.
    • Sample answer that indicates understanding:  Students counts out 18 counters and counts them in sequence to prove their thinking.  Student may also use a tool, such as a number line or hundreds chart.

[divider] [/divider] Additional Resources:

Additional in depth content knowledge

[divider] [/divider] Sample Formative Assessment Tasks:

Track how students count by one by having them read and count the numbers on the sheet.  Extend to count to 100, once 1-45 have been learned.

[divider] [/divider] Resources/Tasks to Support Your Child at Home:

Kahn Academy Tutorial Video: Number Grid

Khan Academy Tutorial Video: Count by Tens (stop after 40 seconds)

ABCya Online Game: Number Bubble

Math Learning Center: Number Frames

Have your child count a set of objects (cereals, counters, pennies).  While they are counting, have them place their items on a hundreds chart to count on.