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Elementary Mathematics

Lesson 117

Collect and Count Data

Ask and count

Collect and count

Votes for favourite fruit are counted into columns: apple 4, banana 6, mango 3.

Collect and count

0123456apple4banana6mango3Banana has the most: 6.
Collect and count.
Teacher controls

Conceptual model: a simplified teaching picture.

Controls
Ask your classmates: “Which is your favourite fruit?” Show pictures of an apple, a banana and a mango.

How should we record each answer?

How should we record each answer?

Data is a set of answers. Sorting them into groups lets us count and compare.