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Middle-school physical science · Grade 6

Was It a Fair Comparison?

Current teacher guidance: 2 November 2026. Student tasks retain their stated core editions. Use the current stage choices and matching guide below.

Changes in the current files · 2 November 2026
  • The teacher guide includes annotated fictional sound, partial and error responses, with concrete teaching actions and evidence to seek next.
  • Previously combined response practice and fresh-check questions have separate files. Use the practice first and reserve its matching check.
  • Browser printing keeps task prompts with their response space; the underlying tasks retain their stated editions.

Evaluate confounds, repair comparison conditions and specify a usable recording plan.

Prepare the materials

Prepare this lesson or activity

Recommended selection edition 1.0.0. Original source files retain their displayed editions.

Use the matching guide to choose a response to the work you observe. Clarify access and task wording first; one response is not a diagnosis. Keep independent work, later tasks and answers aside until their intended use.

Current teacher guidance: 2 November 2026. Student tasks retain their stated core edition; use the matching current guide linked here. Earlier files are kept separately in the archive.

Audience / fit
Intended Grade 6 science; selected Grades 6–8 standards ideas
Teaching or planning target
Evaluate confounds, repair comparison conditions and specify a usable recording plan.
Essential prerequisites
Read units/time, starts and temperature changes. Use the prerequisite check; Kit 1 provides additional support.
Preparation
Read the quick start and choose the student pages; preparation time depends on the selected route.
Use time
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.
Materials
Paper and pencil; optional calculator, number line, projection, pointing or oral response. Equipment-free; no practical experiment.
What to print
Print the chosen activity. Follow the source or reveal instructions beside it.

Evidence to notice: Look for attention to changed conditions and a comparison or test plan that addresses those conditions.

Preview the actual student page
Student page 1: Prerequisite bridge, model and guided practice
Actual student PDF page 1 of 3: Prerequisite bridge, model and guided practice. This page belongs to the named task; a teaching stage may intentionally show a model. Keep the matching teacher answers and reserved tasks separate.

Start with the selected task

Matching teacher guide and answers — keep separate: Matching teacher guide and answers · 12 pages.

Compare the observed response with the guide’s criteria. Clarify access and wording, then use its conditional directions to choose an activity below. Follow-up and later tasks are not interchangeable test forms.

Teaching stages, response practice and later checks

Teaching and guided practice

Independent responses

Focused teaching responses

  • Repair the comparison — response practice · 1 page
    PDF · Editable Word · Read in browser

    Practice only. Keep the matching separate fresh-check file aside until this response teaching is complete.

  • Specify a usable plan — response practice · 1 page
    PDF · Editable Word · Read in browser

    Practice only. Keep the matching separate fresh-check file aside until this response teaching is complete.

Follow-up checks

  • Fresh check after Repair the comparison · 1 page
    PDF · Editable Word · Read in browser

    Reserve until the named response practice is complete; do not distribute with the practice file.

  • Fresh check after Specify a usable plan · 1 page
    PDF · Editable Word · Read in browser

    Reserve until the named response practice is complete; do not distribute with the practice file.

Later tasks — reserve for another occasion

Teacher files — separately

Archived page guidance and source files · Write a local teaching plan

Choose a teaching move from the response

Current print and editable package

Library package prepared 2 November 2026. Revised guides are marked with that date; other files retain their stated editions. Keep this package with the teacher. Read START-HERE, choose one stage, and retain teacher keys and checks for later use in their separate folders. Online browser versions are linked from the preparation pages.

Was It a Fair Comparison? · current ZIP · 0.3 MB

Choose from the response

Choose the next teaching move

Describe what the learner said, wrote or showed. Check access, wording, prerequisites and calculation before interpreting it. A single response is not a diagnosis. Record support and prior exposure; a helped or rehearsed task is practice.

Use the practice-only response file. Its matching fresh check is a separate reserved file; give it only after the selected practice is complete. Keep the later task for another occasion. A different task is not a validated equivalent test.

Start with the supplied materials

Observe, clarify and select one response

Subtraction is used to excuse unequal conditions.

Teaching move: Repair the Comparison: identify which relevant conditions still differ.

After this practice, give the matching check below only if it has not been seen. Keep it aside during teaching.

Read the matching teacher directions; keep answers with the teacher.

The plan is vague, or a whole design is treated as a test of one material.

Teaching move: Use Specify a usable plan: name actual matched conditions, number of fresh trials, measurements and records; distinguish a whole assembly from an isolated material test.

After this practice, give the matching check below only if it has not been seen. Keep it aside during teaching.

Read the matching teacher directions; keep answers with the teacher.

Look again after teaching

After the supplied teaching and guided practice, give the selected independent task without its answers. Use its explanation to choose a response above.

Return on a later occasion

Reserve these tasks until their intended use. They have different demands; do not treat them as equivalent tests or proof of broad mastery.

Return to preparation and all formats · Complete teacher guide and answers

Archive: Additional formats, earlier editions and teaching guidance

Earlier guidance and source files are retained as historical records. For classroom teaching and printing, use the current stage files and matching guides above. Older guidance, timing and layouts are superseded; some retained browser/Word files have limited writing space or sparse extra pages. Keep historical student files with their historical keys and do not mix editions.

Is this the right resource?

Audience / fit
Intended Grade 6 science; selected Grades 6–8 standards ideas
Teaching or planning target
Evaluate confounds, repair comparison conditions and specify a usable recording plan.
Essential prerequisites
Read units/time, starts and temperature changes. Use the prerequisite check; Kit 1 provides additional support.
Preparation
Read the quick start and choose the student pages; preparation time depends on the selected route.
Use time
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.
Materials
Paper and pencil; optional calculator, number line, projection, pointing or oral response. Equipment-free; no practical experiment.
What to print
Use the stage-specific student choices below and the matching teacher guide. Give independent, new-evidence and later-assessment pages only at their intended stage.

Start teaching

Prerequisite bridge, model and guided practice · PDF (3 pages)

Independent check · PDF (1 page)

Read the teacher guide and answers · PDF (8 pages)

Print the bridge, model and guided practice first, then give the separate independent check. Quick Check in the original files repeats that independent task; it is not fresh evidence. Choose a reteach page from the teacher guide and retain the later assessment until its intended use. Use only the selected stage, not the complete student packet.

Editable Word, browser copies and other files

Print and adapt for your own planning and classroom use; printed copies may be shared within your classroom or school team, provided the source is not sold. Keep attribution and resource-specific notices. For redistribution and third-party materials, read the Terms of Use. Recommend this resource using its page link.

Thermal Energy Evidence Kits foundation collection · All free resources

Learning target
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.
Materials
Paper and pencil; optional calculator, number line, projection, pointing or oral response. Equipment-free; no practical experiment.
Audience
For Grade 6. Relevant NGSS expectations span Grades 6–8; check local placement. This addresses selected components, not complete standards coverage.
Time
Allow about 35–45 minutes for the full lesson, 10–15 for a reteach, 5–8 for a later check.

Constructed teaching data: these values were invented for this activity, not collected in an experiment. No actual sleeve or product performance is established.

Choose what to print

  • Additional files · teacher preparation

    Use the separate stage choices above for student handouts. Complete selections may include later tasks or answers.

    Teach the Lesson
  • Additional files · teacher preparation

    Use the separate stage choices above for student handouts. Complete selections may include later tasks or answers.

    Use a Quick Check
  • Additional files · teacher preparation

    Use the separate stage choices above for student handouts. Complete selections may include later tasks or answers.

    Reteach Repair the Comparison
  • Additional files · teacher preparation

    Use the separate stage choices above for student handouts. Complete selections may include later tasks or answers.

    Reteach Specify the Plan
  • Additional files · teacher preparation

    Use the separate stage choices above for student handouts. Complete selections may include later tasks or answers.

    Use a Later Check

Each selection includes its own setup and data. Quick Check repeats the lesson’s independent task; save Later Check for a new response after teaching. Match task headings with the teacher answer key.

Student first page

Student materials preview for Was It a Fair Comparison?

Teacher first page

Teacher guide preview for Was It a Fair Comparison?

Student files

  • Additional files · teacher preparation

    Use the separate stage choices above for student handouts. Complete selections may include later tasks or answers.

    Student printable PDF
  • Additional files · teacher preparation

    Use the separate stage choices above for student handouts. Complete selections may include later tasks or answers.

    Student editable Word file
  • Additional files · teacher preparation

    Use the separate stage choices above for student handouts. Complete selections may include later tasks or answers.

    Read the student file as HTML

Choose a stage and format

Give only the stage being used. Keep later tasks and all teacher keys with the teacher until needed.

Archive: Formats and all files

Earlier guidance and source files are retained as historical records. For classroom teaching and printing, use the current stage files and matching guides above. Older guidance, timing and layouts are superseded; some retained browser/Word files have limited writing space or sparse extra pages. Keep historical student files with their historical keys and do not mix editions.

Complete reference files may include teaching, independent tasks, later evidence or teacher answers. Keep them with the teacher; use the separate stage selections above for handouts.

Teacher files

About the materials

The teacher guide includes complete keys, explanations, alternatives and guidance for choosing a next task.

Accept labeled diagrams, oral explanations pointing to data or connected prose. Clarify unclear responses before assigning a reteach. Do not require a fixed paragraph form.

Complete package

Additional files · teacher preparation

Use the separate stage choices above for student handouts. Complete selections may include later tasks or answers.

Download this resource’s classroom ZIP. Download the complete foundation collection ZIP.

Start Here supplies vocabulary, a response-to-next-task index, sources and a planning record. Use under our Terms of Use. Report a resource issue.

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Do not include student names or identifiable work in an issue report. Page revision: 2 November 2026; classroom files retain their own editions.