Was It a Fair Comparison?
Library package prepared 2 November 2026. Revised guides are marked with that date; unchanged teacher and student/core editions retain their file labels. Use the matching current guide supplied beside each task.
Keep this package with the teacher. Choose one stage at a time. Distribute only its student files and required sources. Teacher keys and reserved independent/follow-up/later tasks have separate folders. A teaching model may intentionally contain an answer; keep checks for later use aside during teaching.
PDF and available native editable files are included. Open the linked preparation page for accessible browser versions, current printing directions and any additional equipment. Online links need an internet connection. Timings are planning estimates; these materials do not establish classroom effectiveness or test equivalence.
Was It a Fair Comparison?
Evaluate confounds, repair comparison conditions and specify a usable recording plan.
Prerequisites: Read units/time, starts and temperature changes. Use the prerequisite check; Kit 1 provides additional support.
Prepare: Read the quick start and choose the student pages; preparation time depends on the selected route. Timing: Allow about 35–45 minutes for the full lesson, 10–15 for a reteach, 5–8 for a later check. Planning estimate; adjust for your class.
Open the current preparation, browser versions and response decisions
Default starting selection: Prerequisite bridge, model and guided practice. Read the matching teacher guide first. Select the response route from the observed work, then use its separate check at the named occasion.
- Prerequisite bridge, model and guided practice — student.
- Independent check — student.
- Repair the comparison — response practice — student. Practice only. Keep the matching separate fresh-check file aside until this response teaching is complete.
- Specify a usable plan — response practice — student. Practice only. Keep the matching separate fresh-check file aside until this response teaching is complete.
- Later assessment — student.
- Matching teacher guide and answers — teacher.
- Fresh check after Repair the comparison — student. Reserve until the named response practice is complete; do not distribute with the practice file.
- Fresh check after Specify a usable plan — student. Reserve until the named response practice is complete; do not distribute with the practice file.
Keep attribution and resource-specific notices. Print and adapt for planning/classroom use under the Terms of Use. Selected coverage is not a complete course.