Pennsylvania Core Standards

Pennsylvania 3rd grade math standards

Every 3rd grade math standard in the Pennsylvania Core Standards for Mathematics, in Pennsylvania's order, with the Lux lessons that teach it.

Number and Operations in Base Ten

CC.2.1.3.B.1
Apply place-value understanding and properties of operations to perform multi-digit arithmetic.
Taught inRounding: closer to which?Round at the right place Estimate first Adding with regroupingand 4 more

CC.2.1.3.C.1
Explore and develop an understanding of fractions as numbers.
Taught inOne part of equal parts Equal parts only More parts, smaller pieces Counting unit fractionsand 8 more

CC.2.2.3.A.1
Represent and solve problems involving multiplication and division.
Taught inThe unknown anywhere Equal groups and arrays Groups or how many in each?Two kinds of division
CC.2.2.3.A.2
Understand properties of multiplication and the relationship between multiplication and division.
Taught inDivision facts are missing factors Facts from facts you know One digit times two digits Turn the arrayand 3 more
CC.2.2.3.A.3
Demonstrate multiplication and division fluency.
Taught inOne array, four facts Equal jumps on a number line Turn the array
CC.2.2.3.A.4
Solve problems involving the four operations, and identify and explain patterns in arithmetic.
Taught inPatterns from a rule Position is not value Two-step word problems Finish the second step

CC.2.3.3.A.1
Identify, compare, and classify shapes and their attributes.
Taught inNaming quadrilaterals One shape, many names
CC.2.3.3.A.2
Use the understanding of fractions to partition shapes into parts with equal areas and express the area of each part as a unit fraction of the whole.
Taught inOne part of equal parts Equal parts only

CC.2.4.3.A.1
Solve problems involving measurement and estimation of temperature, liquid volume, mass, and length.
Taught inLine plots Measuring to the quarter inch Reading a scale Measurement word problems
CC.2.4.3.A.2
Tell and write time to the nearest minute and solve problems by calculating time intervals.
Taught inTelling time to the minute Where the hour hand sits Elapsed time on a number line Time is not base ten
CC.2.4.3.A.3
Solve problems and make change involving money using a combination of coins and bills.
Taught inCounting up to make change Bigger coin, not bigger value Counting coins Money word problemsand 1 more
CC.2.4.3.A.4
Represent and interpret data using tally charts, tables, pictographs, line plots, and bar graphs.
Taught inScaled pictographs and bar graphs Line plots Read the key Questions from graphsand 1 more
CC.2.4.3.A.5
Determine the area of a rectangle and apply the concept to multiplication and to addition.
Taught inOne digit times two digits Area by counting squares Area is rows times columns Area of an L shapeand 1 more
CC.2.4.3.A.6
Solve problems involving perimeters of polygons and distinguish between linear and area measures.
Taught inPerimeter around the edge Same area, different perimeters The cut is not perimeter Area or perimeter?

Lux sees your kid's page, asks one question at a time, and checks each step, in Pennsylvania's order.