2-2 · 디딤돌 최상위 S
48 problem types · 6 units
1. Four-Digit Numbers
Count numbers built from digit cards 4.NBT.A.2 · take
Compare numbers with an unknown digit 4.NBT.A.2 · take
Find a number from digit clues 4.NBT.A.2 · take
Count ways to make an amount with coins 2.MD.C.8 · adapt
Carry ten units to the next place 4.NBT.A.24.NBT.A.1 · take
Skip-count backward to the start 4.NBT.A.2 · take
Find the constant skip-count step 4.NBT.A.2 · take
Ten hundreds make one thousand 4.NBT.A.22.MD.C.8 · adapt
2. Multiplication Facts
Different factor pairs, same product 3.OA.B.54.OA.B.4 · take
Bound an inequality at equality 3.OA.A.43.OA.C.7 · take
Recover the unknown, then recompute 3.OA.A.43.OA.B.6 · take
Guess-and-check a legs problem 3.OA.A.33.OA.D.8 · take
Count groups several equivalent ways 2.OA.C.43.OA.A.1 · take
Multiplying by one and by zero 3.OA.B.53.OA.C.7 · take
Find a number satisfying product bounds 3.OA.A.43.OA.C.7 · take
Solve shape-coded products in order 3.OA.A.43.OA.D.8 · take
Count sticks needed via multiplication 3.OA.A.13.OA.A.3 · take
3. Measuring Length
Gaps are one fewer than the objects 2.MD.B.5 · adapt
Cut a rectangle into a grid of cards 2.G.A.23.MD.C.7 · adapt
Find one handspan from measured counts 2.MD.A.12.MD.B.5 · adapt
Undo more/less to find original length 2.MD.B.5 · adapt
Subtract the overlap from total length 2.MD.B.52.MD.A.4 · adapt
Ribbon around a box: four equal parts 2.MD.B.53.MD.D.8 · adapt
Smaller unit, more measured counts 2.MD.A.1 · adapt
Find two lengths from sum and difference 2.MD.B.5 · adapt
Convert to one unit, then compare lengths 2.MD.A.14.MD.A.1 · adapt
4. Time
Compare hours first, then minutes 2.MD.C.7 · take
Find a future date using days per month 1.MD.B.3 · adapt
Elapsed time between two clock times 3.MD.A.12.MD.C.7 · take
Reason about a fast or slow clock 3.MD.A.1 · take
Reach the next hour, then add the rest 2.MD.C.73.MD.A.1 · take
Read a mirrored clock, then find elapsed time 2.MD.C.73.MD.A.1 · take
Read the hour when the hand is between 2.MD.C.7 · take
Weekdays repeat every seven days 2.NBT.A.2 · adapt
5. Tables and Graphs
Read totals and differences from a graph 2.MD.D.103.MD.B.3 · take
Find the value of one grid interval 3.MD.B.3 · take
Set the scale, then complete the graph 3.MD.B.3 · take
Solve graph values step by step from clues 3.MD.B.33.OA.A.3 · take
Complete a table from its graph and back 2.MD.D.103.MD.B.3 · take
Total equals the sum of the rows 2.MD.D.102.OA.A.1 · take
Compare two data sets in one graph 2.MD.D.103.MD.B.3 · take
6. Finding Patterns
Find the rule of changing clock times 4.OA.C.53.MD.A.1 · take
Complete addition and multiplication tables 3.OA.D.9 · take
Find the rule of a growing block stack 4.OA.C.54.OA.A.3 · take
Multiplication table folds to equal cells 3.OA.B.53.OA.D.9 · take
Sum a repeating number sequence 4.OA.C.53.OA.A.3 · take
Find shape and color repeats separately 4.OA.C.5 · take
Use the seven-day weekday cycle 4.OA.C.5 · adapt