K.1.C
MathKindergarten
The Standard
select tools, including real objects, manipulatives, paper and pencil, and technology as appropriate, and techniques, including mental math, estimation, and number sense as appropriate, to solve problems
Texas Essential Knowledge and Skills for Mathematics
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students choose a useful tool or method for a simple math problem. They may use objects, drawings, technology, mental math, number sense, or estimation, then explain why it fits.
What Mastery Looks Like
- Students choose a tool or method that fits a simple problem and use it correctly. They can explain their choice and try another approach if the first one does not help.
Common Misconceptions
- Students may use counters for every problem, even when counting mentally is faster. They may choose a favorite tool instead of one that fits, or give an estimate when an exact answer is needed.
How to Assess It
- Read: “Mia has 4 apples and gets 3 more.” Students choose counters, a drawing, mental math, or estimation, solve, and explain their choice.
Lesson moves
Ways to Teach It
Set out counters, cubes, paper, pencils, and a tablet, then have pairs choose one tool to solve 5 plus 2.
Ask, “Would you count, draw, or estimate to find how many blocks are in this small pile, and why?”
Play Tool Match by having students pair picture problem cards with counters, drawings, mental math, estimation, or a digital tool.
During snack setup, students choose counting, grouping, or estimation to decide whether there are enough napkins for everyone.
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