Mathematics
Adding and Subtracting Fractions: Find the Common Denominator
Students add and subtract fractions and mixed numbers with unlike denominators and find the mistakes in sample student work.
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English language arts
Be the Peer Editor: Checklists, Kind Feedback and Fixes
Students use an editing checklist on a sample student paragraph, judge feedback comments, give two stars and a wish, and fix the errors.
Technology & computer science
Bug Hunt: Debugging Printed Code
Students read six short Python-style programs, match each to a type of bug, and write a corrected line.
World languages
Classroom Objects and Colors: El o La, Rojo o Roja?
Students learn ten classroom nouns and basic colors, sort nouns by gender, choose articles, make colors agree with nouns, and fix errors in sample sentences.
English language arts
Dialogue Punctuation: Who Said What, and Where Do the Quotation Marks Go?
Students learn six dialogue-punctuation rules, choose the correctly punctuated sentences, fix four errors, and write a short conversation of their own.
English language arts
Dialogue That Sounds Real: Punctuation, Tags and Action Beats
Students fix punctuation errors in sample dialogue, learn action beats, and write a short conversation in which one character wants something.
Mathematics
Exponent Rules: Simplify, Match, and Fix the Mistakes
Students simplify expressions with the product, quotient, power, zero and negative exponent rules, match rules to examples, and fix common errors.
Mathematics
Factoring Basics: GCF, Trinomials, and Zero Products
Students factor out the GCF, factor simple trinomials and differences of squares, solve quadratics with the zero-product rule, and find factoring errors.
World languages
Le passé composé: Introduction with Avoir
Students build the passé composé with avoir, form past participles of -er and a few irregular verbs, translate short sentences, and find errors in sample work.
Mathematics
Multi-Step Equations: Distribute, Combine, Solve
Students solve eight multi-step equations that need distributing, combining like terms, and moving variables, then find errors in sample work.
Mathematics
Polynomial Operations: Add, Subtract, Multiply and Check the Work
Students classify polynomials, add, subtract and multiply them, test a possible factor, and spot errors in sample work.
Social studies
Reconstruction After the Civil War: Fact-Check the Notes
Students read about Reconstruction, match the three Reconstruction Amendments, and fact-check a classmate’s study notes for errors.