Illustrative Mathematics
Making a Ten (Grade 1)
How many ways can first graders make a 10? Using an addition chart, learners color in the 10s on the table. They notice and explain the meaning of the pattern, and how to get to another sum of 10.
Curated OER
Fifty Toes
Young scholars guess the subject of the given problem by reasoning. Then they discuss the ways that the problem could be solved by keeping track of their counting in 10s and showing their work.
Curated OER
Place Value Review: Tens and Ones Place
Young learners determine the place value of a digit in a given number. They review 10s and 1s place value by participating in activities using unit blocks. Some excellent independent practice is built in to this plan. A written...
Curated OER
All Kinds of Numbers
Count and compare numbers and fractions using "greater than" and "less than." Learners count on by 2s and 10s and represent the end number with base ten blocks, counters, and cups. They use circle stickers to illustrate fractions and...
Curated OER
Decomposition, Numbers, and Subtraction
Wonderful for visual learners, this presentation provides images of 10's and 1's cubes, to reinforce the concept of subtraction. Learners practice along with the teacher as 10's and 1's cubes are scratched off.
Curated OER
Counting in Ten's and Two's
In this counting worksheet, students complete activities, first counting in ten's, then two's. Students give numbers that are 10 more or less, 2 more or less, circle and write numbers that = 10 and solve number problems.
Curated OER
The Skip-Counting Game!
In this math worksheet, students learn skip-counting by 2's, 5's and 10's by learning a memory device poem. The 4 verse poem helps students discover number patterns.
Curated OER
Skip Counting By Fives
In this number sequence activity, learners complete 6 different number sequences with a missing number. Next, students skip count by fives in order to complete 5 more number sequences.
Curated OER
Skip Counting By Twos
In this number sequence worksheet, students complete 6 different number sequences with a missing number. Next, students skip count by 2's in order to complete 5 more number sequences.
Curated OER
Count Down in 10's
In this counting down worksheet, students count down by 10 from given numbers, 4 rows total. An answer key is included on page 2.
Curated OER
Counting to One Hundred
Students practice their oral counting skills using a hundreds chart and pennies as manipulatives.
Curated OER
Count on Math
Students develop number sense up to a million. In this developing number sense up to a million lesson, students count their breaths in given time span. Students use blocks representing 10's and 100's to create a...
Curated OER
Towers of 10
Learners complete four worksheets of activities to use cubes to count by 10s. In this counting blocks lesson, students use blocks to count by 10s and complete block counting activities.
Curated OER
Counting Practice
In this math worksheet, 1st graders find the answers to the 10 problems by practicing the counting. The solutions are found on page 2.
Curated OER
Multiplication Facts for 2, 5, and 10
Pupils improve their multiplication skills by completing the multiplication equations for facts 2, 5, and 10. In this multiplication facts lesson, students use different colored markers to mark on a number line and skip count by 2s....
Curated OER
Ways to Make Hundreds
How many ways can you make 200 using 1s, 10s, and 100s? Learners will build number sense, a basic understanding of place value, and prep for future lessons on expanded form with this simple learning exercise. They are given 6 numbers,...
Curated OER
Count by Fives
Students explore counting by fives up to one hundred using a hundreds chart. They create counting hands that are hung on a clothespin and string, and students orally count by fives to one hundred.
DK Publishing
Sneaky Snake: Numbers, Part 2
Don't let these sneaky snakes fool your little learners! A number chart lists numbers 1 - 100, but several snakes are blocking many of the numbers. Mathematicians figure out which numbers are hidden and fill them in next to the...
Curated OER
Who wants to win millions: 1st Grade Subtraction
First graders love learning games! Play subtraction Jeopardy to get your class solving subtraction problems involving 10's and 20's, pictures, and word problems. Send a link home to get parents involved in their child's learning.
Curated OER
Missing Numbers
In this number sequence activity, students examine 6 number sequences and fill in 1 missing number in each sequence. Next, students use the strategy of counting by ten to complete 5 different number sequences.
Curated OER
Take Whole Tens: Subtraction with a Number Line
A tens number line helps your class understand how to "hop" backward to subtract by 10's. Ten practice equations are expressed as math sentences (in word form) using the expressions "take __ from __" and "subtract." A little cartoon...
Curated OER
Adding/Subtracting--More Than/Less Than
In this counting in 10s worksheet, students look at 10 numbers and write down 10 more for each number. Students look at an additional 10 numbers and write down what is 10 less than in each number.
Curated OER
Add Groups of Ten
In this addition worksheet, learners add groups of tens and their remainders to determine the missing addends in the pairs of 2-digit problems and then find the sums. Students solve nine problems.
Curated OER
Addition and Subtraction 7
In this addition and subtraction worksheet, students fill in the blanks counting my twos, threes, tens, and sixes. Students fill in thirty-six blanks.