Smaller Steps
You already know this walk. Decimals and fractions did not change the rules — they only changed the size of the steps.
No score is kept. No points, no streak, no ranking — the only number anyone writes down is the one your teacher writes down, standing next to you.
Show me one first
This one is nobody's problem — it is only here to show the moves before you touch yours. Watching it costs nothing and is written down nowhere.
Now problem 1 is yours. The hint button is there the whole time, and using it is part of the lesson.
Drag it, tap the line, or use the arrow keys.
- 1−0.4 + 0.7 = −2−1.5−1−0.500.511.52
- 20.3 + (−0.8) = −2−1.5−1−0.500.511.52
- 3−0.5 + (−0.7) = −2−1.5−1−0.500.511.52
- 40.6 − 1.4 = −2−1.5−1−0.500.511.52
- 5−0.7 + 0.7 = −2−1.5−1−0.500.511.52
- 60.4 − (−0.6) = −2−1.5−1−0.500.511.52
- 7−3/2 + 5/2 = −5−4−3−2−1012345
- 81/2 − 2 = −5−4−3−2−1012345
- 9−3/4 + (−1/2) = −2−3/2−1−1/201/213/22
- 103/4 − 3/4 = −2−3/2−1−1/201/213/22
There is no right answer here. It only tells your teacher where to start next time.
You walked all ten.
Nothing new happened here. A positive still walks right, a negative still walks left, and subtracting still turns you around — the steps were just smaller. If decimals or fractions ever scare you, remember: it is the same walk.
For the teacher — this device only
One probe row, built from what happened on this screen. Nothing is sent anywhere — copy it into the Goal Builder yourself, or print this page. Independent means walked with no hints; supported means walked after a hint. Both are real evidence and neither is a grade.
- Date
- —
- Skill
- Add and subtract decimals and fractions on a number line
- Measure
- Trials (x of y)
- Independent
- 0 of 10
- Supported
- 0 of 10
- Hints used
- 0
- Confidence
- —
Items 1–6 are tenths, 7–8 are halves, 9–10 are quarters, and two of them land on zero. Set 2 and Set 3 are the same ten skills with different numbers, so the same student can be probed three weeks running without being measured on memory. This activity pairs with Activity 3 — a student who can walk that one already has everything this one needs.