Series: Focus on the Child
Focus on the Child videos are taken from one-on-one interviews with individual children. The interviews are designed to elicit evidence of children’s mathematical thinking. They are not teaching episodes or formal assessments.
Series: Focus on the Child
Noticing Same and Different: The Concept of Comparison with Infants and Toddlers
July 19, 2022
“More” is often one of children’s first words. Infants attend to differences, though they don’t yet discriminate between "more" as quantity or magnitude/size or intensity of sensation. Toddlers are beginning to differentiate between attributes and…
- Topic: Number Sense
- Age/Grade Level: Infants, Toddlers
- Tags Comparing
Series: Focus on the Child March 22, 2022
Benchmarks of 5 and 10 with Child 39
This child uses the visual arrangement of a ten frame to conceptually subitize quantities into the teen numbers. He recognizes a full row as a unit of 5 and uses that to derive larger numbers…
- Topic: Number Operations
- Age/Grade Level: Pre-K, Kindergarten
- Tags Child 39
Series: Focus on the Child March 22, 2022
Solving a Problem with Both Parts Unknown with Child 39
This child encounters a new type of problem situation: a part-part-whole story where both parts are unknown. He is uncertain how to model the problem at first but has some success with adult support. Focus…
- Topic: Number Operations
- Age/Grade Level: Pre-K, Kindergarten
- Tags Child 39
Series: Focus on the Child March 22, 2022
Solving a Part-Part-Whole Problem with Child 39
This child uses cubes to model a part-part-whole problem where the whole is unknown. He uses a counting all strategy. He counts out each part and then counts them altogether, starting from one. Focus on…
- Topic: Number Operations
- Age/Grade Level: Pre-K, Kindergarten
- Tags Child 39
Series: Focus on the Child March 10, 2022
The CAIR Principle to Tune into Math for Babies and Toddlers
We all know that babies aren’t born walking, talking, following directions, counting, or measuring size. But they do enter the world hard-wired with instincts that will mature and develop into those skills in the preschool…
- Topic: Precursor Concepts
- Age/Grade Level: Infants, Toddlers
Series: Focus on the Child September 22, 2021
Math Activities for Infants and Toddlers are Everyday Explorations
Long before they can talk or explain, babies are thinking logically and exploring ordinary everyday objects, sensations, and experiences that are new to them. Encouraging and celebrating their explorations and discoveries is a highly effective…
- Topic: Precursor Concepts
- Age/Grade Level: Infants, Toddlers
- Tags Family Math
Series: Focus on the Child May 19, 2021
Why Cardinality is the Goal of Counting
What is cardinality? And how is it related to counting? The common definition of cardinality states that it’s the understanding that the last number word said when counting tells how many in all.
- Topic: Sets, Number Sense, Counting
- Age/Grade Level: Pre-K, Kindergarten
- Tags Cardinality
Series: Focus on the Child December 5, 2019
Egg Carton Story with Child 15
The math story this second grader solves is a change unknown story. There was a full carton of a dozen eggs but some were eaten, leaving only 3 eggs. After making sense of the problem,…
- Topic: Number Operations
- Age/Grade Level: 1st Grade, 2nd Grade, 3rd Grade
- Tags Child 15
Series: Focus on the Child December 4, 2019
Teddy Bear Picnic Math Stories with Child 15
A second-grade student solves a variety of addition and subtraction math stories. Using his fingers as math tools, he is able to solve the stories, even as what is known or unknown shifts.
- Topic: Number Operations
- Age/Grade Level: 1st Grade, 2nd Grade, 3rd Grade
- Tags Child 15
Series: Focus on the Child December 3, 2019
Capture It with Child 15
A second-grader works on basic number combinations as we see him playing a comparison card game, Capture It. He is accurate when comparing sums but is still developing his efficiency and flexibility, key indications of…
- Topic: Number Operations
- Age/Grade Level: 1st Grade, 2nd Grade, 3rd Grade
- Tags Child 15
Do the math.
Free videos.
Free newsletter packed with ideas.
Free professional learning modules.