# Q2W6 (1/5 – 1/8)

Weekly-Assignments-January 5-January 8 Teacher Kathleen Manning Math and Science 4 6 Equivalent Fractions/ Law of Conservation of Mass
Standard(s) Taught

MATH: MAFS.4.NF.1.1
Explain why a fraction a/b is equivalent to a fraction n X a/ n X b by using visual fraction models, with attention to how the number and size of the parts differ even though the two fractions themselves are the same size. Use this principle to recognize and generate equivalent fractions.

SCIENCE: SC.4.P.8.3
Explore the Law of Conservation of Mass by demonstrating that the mass of a whole object is always the same as the sum of the masses of its parts.

Learning Targets and Learning Criteria

The learner will:
– Explain using visual fraction models, how and why fractions can be equivalent even though the number and size of the parts are not the same.
– Recognize and generate equivalent fractions by partitioning number lines, rectangles, squares, and circles.
– Recognize and generate equivalent fractions by using the conceptual understanding of the relationship between altering the size of the parts and the resulting effect on the number of parts.(e.g. if the parts are partitioned to be two times as small, then there will be two times as many total parts).
– Explore the Law of Conservation of Mass (whole = sum of its parts) to obtain the mass of various objects using tools and technology.
– Demonstrate that the mass of a whole object is always equal to the sum of its parts.

Classroom Activities

Math Book 2, Chapter 8 – Lessons 3, 4, 5
Math manipulatives
Math Stations and small groups
Florida Students.org tutorials in Math and Science
Science Experiments: Cookie Crumbles, Ice Cubes in a Bag.
Science Activity sheet: Seedlings in a Jar