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Features

  • The red and blue number rods from 1 to 10, drawn to scale on every page
  • Count the parts of each rod and write the number
  • Draw a line from each rod to its numeral card
  • Put six rods in order from shortest to longest, as in building the stair
  • Find the rod that fills the gap beside the 10 rod: two rods that make 10
  • Circle the longer rod, and color a rod one longer on a strip
  • Made to be read aloud, with big boxes to write in
  • Every page in color and in black and white
  • Answer keys included

Skills Covered

  • Count the parts of a rod from 1 to 10
  • Match a quantity to its numeral
  • Order lengths from shortest to longest
  • See that each rod is one longer than the one before
  • Find two rods that together make 10
  • Compare two lengths and make one a unit longer

How to Use This Pack

Five pages built on the number rods, read aloud to the child, with every rod drawn to the same scale so the pages work like the rods on the rug. Page 1 has six rods to count part by part, writing each rod's number in the box. Page 2 has six rods and six numeral cards: the child draws a line from each rod to its card, as when the cards are laid at the end of each rod. Page 3 has six rods out of order: the child writes 1 beside the shortest, then 2, and so on to the longest, the way the stair is built. Page 4 lays a rod beside the 10 rod and leaves a gap: the child circles the rod that fills the gap exactly, so the two rods make 10. Page 5 asks which of two rods is longer, then has the child color a rod one part longer than the one shown on a strip of squares.

In the Classroom

Use the pages after the child has worked with the real rods: built the stair, named the rods in a three-period lesson and counted them, touching each part. Let a child who is unsure take the real rods to the table and lay them on the page or beside it. On page 4, have the child find the two rods on the rug and lay them end to end next to the 10 rod before circling. The pages make a quiet follow-up to the work and a record of it.

At Home

Cut strips of paper one, two, three and up to ten squares long, color the squares red and blue in turn, and build a stair together. Count each strip, touching every square. Ask which two strips make the same length as the longest one, and lay them side by side to check.

Tips for Success

  • Touch each part of a rod as you count it, and say the last number for the whole rod
  • The rods start with a red part, so the red ends line up when the stair is built
  • Each rod is one part longer than the one before it
  • Two rods make 10 when, laid end to end, they are as long as the 10 rod
  • Let the length check the answer: a rod that is too long or too short shows at once

Common Core Standards Alignment

This pack supports the following Common Core State Standards for Mathematics:

  • K.CC.A.3 Write the numerals 0 to 20 and use a numeral to show how many objects are in a group, with 0 meaning none.
  • K.CC.B.4a Count objects by saying numbers in order and matching exactly one number to each object, none skipped or counted twice.
  • K.CC.B.4b Know the final number in a count gives the total, and the total stays the same however the objects are arranged or counted.
  • K.CC.B.5 Tell how many: up to 20 objects in a line, array or circle, or 10 scattered. Also count out a requested number up to 20.
  • K.OA.A.4 For a number from 1 to 9, find the partner that adds with it to 10, and show it in a picture or number sentence.
  • 1.MD.A.1 Put three objects in order from longest to shortest, and compare two lengths by checking each against a third object.

© Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved.

Montessori Number Rods

Pre-K – K

The Montessori number rods, the ten red and blue rods from 1 to 10, drawn to scale so every rod is one part longer than the one before. Children count the parts of a rod and write its number, match rods to numerals, put rods in order from shortest to longest, find the rod that makes 10 with another, and compare lengths.

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What’s Included

  • 5 worksheets in color and in black and white, with answer keys (15 pages)
  • Count and write, and match rods to numerals
  • Order the rods, and two rods that make 10
  • Longer and shorter, and a rod one longer
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