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# Subitizing - How many to make ten - Task Cards

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This resource was designed to provide your students with plenty of practice with their subitizing and computation skills.

Subitizing is a skill that greatly helps the development of number sense in early ages. The ability to recognize patterns in groups of objects helps students understand and build upon the concepts of one-to-one correspondence as well as conservation of number.

Computation is the skill that allows us to make calculations rapidly and accurately.

When using 10 frames, the students also develop the concept of the number ten, as well as its relationships with other numbers. In other words, the students learn to use 10 as a reference number. This concept will be very important later on when dealing with place value concepts.

This resource contains 36 task cards depicting children holding ten frames with dot images, one poster with student-friendly instructions that can be used in centers, and 2 worksheets that students can use to record their answers.

These task cards should be printed in sturdy card stock and then laminated. Students can use a dry erase marker to circle the dots on the cards.

There are 4 cards for each number. The students have to identify the number represented by the dots on the ten frames, and write the number on the worksheet. Then, they have to figure out how many more dots they would need to make ten and write it on the worksheet too. This allows the students to practice their subitizing skills by both looking at the dots and then at the blank spaces on the frames.

Afterwards, the students have to complete the equation on the worksheet. This will allow them to “discover” the subtraction facts for the number 10, will reinforce the concept of subtraction as a “add on” process, and will allow them to develop their computation skills.

Some students might feel tempted to count the dots and spaces one by one. The teacher should encourage them not to do this in order to “train” their eyes to see objects in groups (subitizing).

Option 1 – Use these cards with students when working individually in a one-to-one conference. Help the student complete the worksheet and explore the many ways in which they can process the number of dots and blank spaces in each ten frame.

Option 2 – Use the task cards in centers. Students can independently work through the cards while practicing their skills. You can use the poster provided as a student-friendly guide for your math center.

Option 3 – Allow the students to work in pairs or groups to complete as many cards as possible. You can make it into a competition by challenging your students to see which group completes the highest amount of cards in the same period of time.

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Total Pages
12 pages
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\$3.49