Monday, June 1 — Day 13

Review week, lap 1. Nothing new. One pass over everything.

The deal today

9:30 to 12:30, two 20-minute breaks.
22 questions. You've seen every type before.
Both versions available.

Focus today

Valence — read the group, don't count

Today: O, Na, C. Find the element, read its group number, that's the valence (groups 1-2 → 1 or 2; groups 13-18 → last digit).

O is group 16 → 6. Wants 2 more to reach 8.
Na is group 1 → 1. Gives 1 away.
C is group 14 → 4. Shares 4 — that's why carbon builds life.

Do the eight practice questions in the valence lesson before the exam.

Peace — the year AND the story

Four today: Westphalia, Oslo, Versailles, Abraham.

Westphalia, 1648 (not 1638). Ended the Thirty Years' War and invented the modern country.
Oslo I, 1993. Israel and the PLO recognized each other. Was meant to lead to a Palestinian state. It didn't — settlements grew, Rabin was assassinated, no state came.
Versailles, 1919. Punished Germany after WWI so harshly it set up WWII.
Abraham Accords, 2020. Israel–UAE/Bahrain, stepping around the Palestinians.

Math + biology

Two multiplication breakdowns (13×12, 17×6) — slow down on the last addition.
GCF, LCM, and add/subtract/multiply/divide fractions, one each.
Evolution includes Homo sapiens = 0.3 mya — you can type the decimal now.

Today's exam (22 questions)

9 math (3 multiplication, GCF, LCM, +/−/×/÷ fractions)
5 science (3 valence + 2 protons/neutrons)
5 history (4 peace + WWII)
3 evolution (Big Bang, Cambrian, Homo sapiens)

Warm-up

Eight valence practice questions (in the lesson).
Say the four accord years and their one-line story out loud.
A few 2-digit multiplications on paper.

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