September · Week 1 · Day 3 · School day 3
Day 3: Measuring the World Precisely
Play with your child: Measure Up
Today’s goals
- Word study: Word building with ver and cred L.11-12.4b
- Reading: Two themes in the creation story with evidence RL.11-12.1, RL.11-12.2
- Math: Compound inequalities HSA-REI.B.3
- Science: SI units, scientific notation and significant figures HSN-Q.A.3, HS-PS2-1
Materials
- The World on the Turtle's Back (Haudenosaunee creation story; any anthology or library retelling)
- A meter stick or metric tape measure
- A calculator
- Analysis notebook
- A desk or table to measure
Swaps in [brackets] are fine. Use what you have at home or in the classroom.
The day, step by step
10–15 min Morning meeting and current events SL.11-12.1
- Question of the day: What is the most precise measurement you have ever made? Students share one measurement they have made (a recipe, a room, a race time) and how precise it was.
- News brief and one question.
- Connect: precision matters in physics, in math, and in quoting a text exactly.
15–20 min Vocabulary and word study L.11-12.4b
- Build word families: verify, verifiable, verification; credence, credential, credentials, discredit.
- Discuss how suffixes change part of speech: verify (verb), verifiable (adjective), verification (noun).
- Students write one sentence that uses verifiable and one that uses discredit about a news claim.
- Check: what does in- do to credible? (Makes it mean not believable.)
30–40 min Literature and texts RL.11-12.1, RL.11-12.2
The World on the Turtle's Back (Haudenosaunee creation story; any anthology or library retelling)
- Review: a theme is a message about life stated as a full sentence, not one word. Balance is a topic; The world stays whole when opposing forces balance is a theme.
- Theme 1: balance of good and evil. Students find two moments (the twins' opposing creations, their final contest) and cite page numbers.
- Theme 2: creation through cooperation. Students find two moments (the birds catching Sky Woman, the animals diving for earth, the turtle offering its back).
- Partners decide which theme is more central and defend the choice in two sentences.
40–50 min Algebra 2 HSA-REI.B.3
- Review: multiplying or dividing by a negative flips the sign. Solve -2x + 7 > 15: -2x > 8, so x < -4. Check x = -5: 10 + 7 = 17 > 15.
- And inequality: -3 ≤ 2x + 1 < 9. Subtract 1: -4 ≤ 2x < 8. Divide by 2: -2 ≤ x < 4. Graph with a closed dot at -2 and an open dot at 4.
- Or inequality: 3x - 1 < -7 or 2x + 5 ≥ 11 gives x < -2 or x ≥ 3. Graph two rays pointing away from each other.
- Exit ticket: 5 < 4 - x ≤ 9. (Subtract 4: 1 < -x ≤ 5; multiply by -1 and flip: -5 ≤ x < -1.)
30–40 min Physics HSN-Q.A.3, HS-PS2-1
- SI base units for physics: meter (m), kilogram (kg), second (s). Prefixes: kilo = 10³, centi = 10⁻², milli = 10⁻³, micro = 10⁻⁶.
- Scientific notation: 0.00045 m = 4.5 × 10⁻⁴ m; the Earth to Moon distance of 384,000 km = 3.84 × 10⁸ m. Convert 72 km/h to m/s: 72,000 m ÷ 3,600 s = 20 m/s.
- Significant figures: 0.0250 has 3; 1.20 × 10³ has 3. When multiplying, keep the fewest: 2.50 × 3.1 = 7.75, reported as 7.8.
- Measure the length of a desk with a meter stick: read to the nearest millimeter and estimate one more digit (for example 1.2235 m). Compare partners' values and discuss why they differ.
25–35 min Writing W.11-12.9a, L.11-12.2
- Three steps to integrate a quotation: introduce it with context, quote a short phrase (not a whole paragraph), then cite it with a page number.
- Model: When the sky world tree is uprooted, the story describes the opening as a path between worlds ([phrase from your edition] 22). Point out the period goes after the parenthesis.
- Students choose a phrase of four to eight words from their copy and integrate it into a sentence about one theme.
25–35 min Independent practice and projects
- Rewrite five measurements in scientific notation and state the significant figures in each.
- Solve and graph -6 < 3x + 3 ≤ 12. (-3 < x ≤ 3.)
- Add one integrated quotation for the second theme to your notebook.
- Convert 1.5 hours to seconds (5,400 s) and 250 cm to meters (2.50 m).
Projects: keep the reading log current and build the analysis notebook toward the literary analysis essay.
Device time (15 min): play Measure Up on the Student games page.
Today’s game: Measure Up
5–10 min Closing reflection SL.11-12.1
- Why does a measured value need an estimated last digit?
- Which theme in the creation story has stronger evidence?
- When do you flip an inequality sign?
Support: Provide a prefix ladder (kilo to micro) and a sig-fig rules card for students to keep in the notebook.
Stretch: Find the percent difference between your desk measurement and a partner's and explain whether it is within the meter stick's precision.
Look for: Students can state a theme as a sentence with two citations, solve a compound inequality, and report a measurement with correct significant figures.
Short day? Keep the themes discussion, the compound inequality examples and the desk measurement.