Grade 3 Math

Unit 1: Number and Operations – Fractions

April 6-17

Develop understanding of fractions as numbers.

Note: Fractions are limited to those with denominators 2, 3, 4, 6, and 8.

  • NY-3.NF.1 Understand a unit fraction, 1 𝑏𝑏 , is the quantity formed by 1 part when a whole is partitioned into b equal parts. Understand a fraction π‘Žπ‘Ž 𝑏𝑏 as the quantity formed by a parts of size 1 𝑏𝑏 .
  • NY-3.NF.3 Explain equivalence of fractions and compare fractions by reasoning about their size.
  • NY-3.NF.3a Understand two fractions as equivalent (equal) if they are the same size, or the same point on a number line.
  • NY-3.NF.3b. Recognize and generate equivalent fractions. e.g., 1/2 = 2/4 ; 4/6 = 2/3 Explain why the fractions are equivalent.

Unit 2: Measurement and Data

April 20-May 1

Solve problems involving measurement and estimation of intervals of time, liquid volumes, and masses of objects.

  • NY-3.MD.1 Tell and write time to the nearest minute and measure time intervals in minutes. Solve one-step word problems involving addition and subtraction of time intervals in minutes.

Represent and interpret data.

  • NY-3.MD.4 Generate measurement data by measuring lengths using rulers marked with halves and fourths of an inch. Show the data by making a line plot where the horizontal scale is marked off in appropriate unitsβ€”whole numbers, halves, or quarters.

Unit 3: Measurement and Data

May 4-15

Represent and interpret data.

  • NY-3.MD.3 Draw a scaled picture graph and a scaled bar graph to represent a data set with several categories. Solve one- and two-step β€œhow many more” and β€œhow many less” problems using information presented in a scaled picture graph or a scaled bar graph.

Unit 4: Measurement and Data

May 18-29

Geometric measurement: understand concepts of area and relate area to multiplication and to addition.

  • NY-3.MD5. Recognize area as an attribute of plane figures and understand concepts of area measurement.
  • NY-3.MD.6 Measure areas by counting unit squares.
  • NY-3.MD.7 Relate area to the operations of multiplication and addition

Units 5 and 6: Geometry, Measurement & Data

June 1-17

Reason with shapes and their attributes.

  • NY-3.G.1 Recognize and classify polygons based on the number of sides and vertices (triangles, quadrilaterals, pentagons, and hexagons). Identify shapes that do not belong to one of the given subcategories.
  • NY-3.G.2 Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the whole.
    e.g., Partition a shape into 4 parts with equal area, and describe the area of each part as 1/4 of the area of the shape.

Geometric measurement: recognize perimeter as an attribute of plane figures and distinguish between linear and area measures.

  • NY-3.MD.8a Solve real world and mathematical problems involving perimeters of polygons, including finding the perimeter given the side lengths or finding one unknown side length given the perimeter and other side lengths
  • NY-3.MD.8b Identify rectangles with the same perimeter and different areas or with the same area and different perimeters.