RockLicker · Grade 2 · Lesson 5 of 5

A Pebble with a Question

Write a short specimen record with observations, a possible explanation and a question.

  • Grade 2
  • 30 minutes
  • Worksheet + teacher guidance
Back to Grade 2

What you will learn

The place a loose pebble is found may differ from where it formed. Good notes preserve that context and distinguish what you saw from what you think happened.

Words to use

  • context: information about the setting
  • idea: a possible explanation
  • question: something to investigate

Evidence for this lesson

Optional sample description: Pebble A is from a teaching tray. Its edges are rounded, its surface is gray and a few pale grains are visible. Its original locality is unknown.

Use the supplied record as written; do not invent missing results.

Work through the activity

  1. 5 min · Record the settingLabel the sample “Pebble A.” State whether it came from a tray, a photograph or a supervised observation in place.
  2. 10 min · DescribeRecord two features before choosing an explanation. Draw the edge shape and any visible grains or colors.
  3. 10 min · Suggest and questionTry “The edges may be rounded because …”. Discuss more than one possible cause; a rounded pebble alone does not prove river transport.
  4. 5 min · ShareRead your notes to a partner. Ask whether they can tell the observation apart from your idea, then revise one sentence.
RockLicker
GRADE 2 · LESSON 5

A Pebble with a Question

Draw on the printed sheet or write, type or dictate your response.
Draw on the printed sheet or write, type or dictate your response.
Draw on the printed sheet or write, type or dictate your response.
Draw on the printed sheet or write, type or dictate your response.

Responses stay in this open page only. Print before closing or changing pages; no student record is stored online.

Check your understanding

Which sentence shows a possible explanation?

Teacher & family guide · answers and assessment

Grade 2 · A Pebble with a Question

Learning goal: Write a short specimen record with observations, a possible explanation and a question.

Expected responses

  1. The actual teaching context should be stated, not an invented natural location.
  2. Accept rounded edges and visible color or texture details.
  3. Transport wear is a possible idea, but other histories remain possible.
  4. Accept an investigation question about origin, grains, movement or comparison with another pebble.

Understanding check: Water may have worn its edges. “May have” introduces an interpretation. Rounded edges are the observation.

Watch for this misconception

A rounded shape does not by itself prove where a pebble came from.

Assess the evidence

Look for the observations, calculation or explanation named in the learning goal. Accept accurate drawings and dictated responses. Use the expected responses to discuss reasoning; a correct guess without explanation is a starting point for another conversation.

Adapt and extend

Read prompts aloud, enlarge print or let a partner record the learner’s explanation. Use Build a Specimen Story to turn the notes into a longer record.