🔢 3rd grade Math

Units

1. Unit 1

   🔢Numbers to 100,000

   Reading and writing whole numbers up to 100 000, the value of each digit, comparing and ordering them, and adding or taking away 10, 100, 1,000 or 10,000.

   TEKS student expectation: 3.2(A); 3.2(B); 3.2(D) · place value to 100,000, and comparing and ordering whole numbers

2. Unit 2

   🎯Round & Count

   Rounding numbers to the nearest ten or hundred, counting forward and back by 50s, 100s and 200s, and comparing and ordering numbers up to 1000.

   TEKS student expectation: 3.4(B); 3.2(C) · rounding to the nearest 10 or 100 and placing numbers between multiples of 10 and 100

3. Unit 3

   ➕Add & Subtract

   Adding and subtracting 2- and 3-digit numbers by place value, number-line jumps and counting up, plus estimating by rounding to the nearest hundred.

   TEKS student expectation: 3.4(A) · adding and subtracting within 1,000 with place value strategies

4. Unit 4

   🪜Two-Step Stories

   Word problems that take two steps with any of the four operations, choosing an equation with a letter for the unknown, and checking an answer by estimating.

   TEKS student expectation: 3.4(K); 3.5(A); 3.5(B) · representing and solving one- and two-step problems, and checking with estimates

5. Unit 5

   ✖️Multiplication

   Understanding multiplication as equal groups, arrays, repeated addition and skip counting. Easier sets use 2s, 5s and 10s; stretch sets go beyond 5 × 5.

   TEKS student expectation: 3.4(D); 3.4(E); 3.4(F) · equal groups and arrays, and recalling multiplication facts to 10 by 10

6. Unit 6

   🔟Times Tens

   Multiplying a one-digit number by a multiple of ten (like 6 × 40) using a basic fact and place value.

   TEKS student expectation: 3.4(G) · multiplying a one-digit number by a multiple of 10

7. Unit 7

   ➗Division

   Understanding division as sharing fairly and as making equal groups, and using multiplication facts to divide (3 × 4 = 12, so 12 ÷ 3 = 4).

   TEKS student expectation: 3.4(H); 3.4(J) · sharing into equal groups and finding quotients from multiplication facts

8. Unit 8

   📈Patterns & Equations

   Extending increasing and decreasing patterns, describing pattern rules in words and tables, and solving one-step equations like ☐ + 8 = 23.

   TEKS student expectation: 3.5(D); 3.5(E) · finding unknown numbers in equations and describing number pairs in tables

9. Unit 9

   🍕Fractions

   Naming fractions of a shape, a set and a number line, knowing what the top and bottom numbers mean, and comparing fractions by the size of their parts.

   TEKS student expectation: 3.3(A); 3.3(C); 3.3(H) · unit fractions, fractions with denominators 2, 3, 4, 6 and 8, and comparing fractions

10. Unit 10

    📐Halves & Fourths of an Inch

    Measuring lengths to the nearest half and quarter inch, then reading the measurements from a table like a line plot.

    TEKS student expectation: 3.7(A); 3.8(A) · measuring to the nearest half and fourth of an inch and showing the data in a dot plot

11. Unit 11

    📐Area & Perimeter

    Finding the perimeter (distance around) of rectangles and triangles, finding a missing side, and measuring area in square centimeters and square meters.

    TEKS student expectation: 3.6(C); 3.7(B) · area of rectangles as rows times columns, and perimeter and missing side lengths

12. Unit 12

    🔷Sorting Polygons

    Practices naming polygons by their number of sides and sorting them as regular (all sides and angles equal) or irregular.

    TEKS student expectation: 3.6(B) · using attributes to recognize and sort polygons and quadrilaterals

13. Unit 13

    🧊3D Objects

    Naming 3D objects, counting their faces, edges and vertices, and thinking about how they are built from flat faces or from straws and clay.

    TEKS student expectation: 3.6(A) · classifying cones, cylinders, spheres, prisms and cubes by their attributes

14. Unit 14

    ⏰Time

    Telling time on an analog clock, working out start and end times, and knowing how seconds, minutes, hours, days, weeks, months and years relate.

    TEKS student expectation: 3.7(C) · adding and subtracting time intervals in minutes

15. Unit 15

    📏Measuring

    Measuring with centimeters and meters, grams and kilograms, milliliters and liters: choosing sensible units, estimating, comparing and solving measurement problems.

    TEKS student expectation: 3.7(D); 3.7(E) · choosing and using units of liquid volume and weight

16. Unit 16

    📊Scaled Graphs

    Reading picture graphs and bar graphs where each picture or step stands for 2, 5 or 10, answering how many more and how many in all, and choosing questions a survey can answer.

    TEKS student expectation: 3.8(A); 3.8(B) · making and reading pictographs and bar graphs with scaled intervals

17. Unit 17

    💵Coins & Bills

    Your child finds the value of a mix of US coins and bills, writes it with the dollar sign and decimal point, and finds change.

    TEKS student expectation: 3.4(C) · finding the value of a collection of coins and bills

18. Unit 18

    🧾Money Choices

    Personal financial literacy: your child connects skills and work to income, sees how scarcity changes prices, weighs planned and unplanned spending, learns what credit is and who pays it back, and makes a simple savings plan.

    TEKS student expectation: 3.9(A); 3.9(B); 3.9(C); 3.9(D); 3.9(E); 3.9(F) · work and income, scarcity and cost, spending decisions, credit, and saving