Math 2.1(C)
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;
- Plus Plan
Hours, Seconds & Minutes - Estimating Time Sort
Estimate activities that take about a second, minute, hour, and week with a printable unit of time sorting activity.
- Plus Plan
Paper Airplane Challenge - Measuring Distance Performance Task
Practice measuring distance and have fun hosting a paper plane competition using a printable math investigation workbook.
- Plus Plan
Mental Math – Subtraction Flashcards
Build up your students' mental math skills with a set of 36 subtraction flashcards using one- and two-digit numbers.
- Free Plan
Subtraction with Regrouping - Printable Math Mat
Explore subtraction with regrouping using a printable subtraction math mat.
- Plus Plan
Open-ended Math Problem Solving - Grades 1, 2, and 3 (Task Card Version)
A set of 20 open-ended problem solving task cards covering a range of mathematical concepts.