Illustrative Mathematics
Illustrative Mathematics: Boys and Girls, Variation 1
This word problem focuses on the Put Together/Take Apart contexts for addition and subtraction. Students may use objects, pictures, or equations to represent their solutions. Examples and explanations are provided.
Rice University
Rice University: Cynthia Lanius: Fun Mathematics Lessons
This resource has mathematics lessons for different levels, from counting to slope. In English and Spanish.
Illustrative Mathematics
Illustrative Mathematics: 7.ns Sharing Prize Money
In this lesson plan, 7th graders solve real world problems using the four operations.
Illustrative Mathematics
Illustrative Mathematics: Finding a Chair
This lesson includes a series of questions that can be posed by the teacher to the whole class which revolves around addition and subtraction.
Illustrative Mathematics
Illustrative Mathematics: A Apr Zeroes and Factorization of Quadratic Polynomial
This is the first of a series of problems building to an understanding of an important property of polynomial functions, that a polynomial of degree d can have at most d roots. Aligns with A-APR.B.2.
PBS
Pbs: Kid Vid: Dividing Mixed Numbers and Fractions
Critique a peer's thinking about two division word problems, one with whole and mixed numbers and one with two fractions, in this interactive from KET. Students watch a video of a student thinking through two word problems that involve...