Three video segments that demonstrate numerous strategies around problem solving with addition and subtraction in 1st grade.
K4 Math - Counting
The teacher develops classroom routines while reinforcing math vocabulary through repeated usage.
K5 Math - Number Sense
A kindergarten class work together to develop number sense around the concept of teen numbers.
K5 Math - Number Sense, Numbers in the Teens
A kindergarten class discovers how to decompose teen numbers into a ten and group of ones. Students work with concrete, pictorial, and abstract representations of teen numbers.
K5 Math - Decomposing & Composing Numbers
A Kindergarten class works together to build their understanding of decomposing and composing numbers. The teacher uses the LESA model to provide students opportunities to persevere and have discourse.
2nd Grade Math - Subtracting 10s & 100s
A class works together to gain a better understanding of number sense by adding and subtracting tens and hundreds from given numbers. ALL students use white boards to engage in the problem and show their thinking.