📊 Grade 2 — Let's Count and Compare
Complete instructor pack for the Grade 2 data science course. Ages 7–8. Students learn to count, measure, and compare groups, record data with tally marks, and draw and read simple bar graphs — building number fluency with real data.
📈 Course Arc — How Sessions Build on Each Other
Classroom Supplies — Keep These on Hand All Term
Most sessions need physical materials. Stock these once and you're set for all 8 sessions.
🧠 ND-Friendly Tips for Grade 2 (Ages 7–8)
- Post the agenda visually at the start of every session — Draw or write the 3–4 blocks on the board. Students who need predictability will refer back to it throughout the period.
- Demonstrate every interaction before releasing students — For the survey sessions, act out the full exchange ("Hi, what's your favorite season?") before students walk around. Reduce social anxiety by scripting the approach.
- Physical cards before abstract questions — In Session 2, students move real cards to sort questions. The physical manipulation supports working memory and gives fidgeters a productive outlet.
- Graph paper is an access tool, not just a scaffold — Pre-drawn grids reduce motor planning demands for students with fine-motor challenges. Offer rulers freely — not as a correction, but as a tool everyone uses.
- Allow flexible response during surveys — Some students are more comfortable with a nod, a point, or a written answer card than speaking aloud. Have a few picture-answer cards ready (sun/snowflake/leaf/flower for seasons).
- Counting brain breaks align with the math — Each brain break uses counting (clap 7 times, jump the number that wins). This reinforces number sense without feeling like extra work.
- The Class Data Book (S8) is everyone's — No student page is graded against another. Honor all contribution formats — drawing a bar instead of writing a sentence is valid data communication.
📚 Other Grade Packs in This Series
Grade 1 — I Notice, I Wonder (Ages 6–7) | Grade 3 — Asking Better Questions (Ages 8–9) | Grade 4 — What's the Story? (Ages 9–10) | Grade 5 — Data Detective (Ages 10–11) | ← Back to Data Science Instructor HubData Is All Around Us
What is data? Counting, measuring, noticing; data in everyday life
Questions We Can Count
Countable vs. uncountable questions, answer choices, good survey questions
Running Our First Survey
Asking classmates, recording responses with check marks, class survey activity
Making a Tally Chart
Tally marks in groups of 5, totals row, turning survey data into a tally chart
Drawing a Bar Graph
Building a bar graph from a tally chart; title, axis labels, scale, bars
Reading Graphs Together
Asking and answering questions about bar graphs; most, least, same, how many more
Our Second Survey
Students design their own question, recording sheet, survey 8 classmates, tally chart
Our Class Data Book (Capstone)
Complete bar graph from Session 7, write one sentence, compile class data book