Decimal Numbers and Percentages 03 – Foundational Math

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⚠️ This adapted Mathematics activity was designed to continue teaching Decimal Numbers and Percentages to students who are in the process of learning to read and write, using everyday situations, large illustrations, and clear instructions.

Number of questions in the activity:

4 adapted questions + complete answer key, distributed across 1 activity page, accompanied by 1 introductory visual summary page.

The sequence begins by adding monetary values, progresses to reading measurements in milliliters, and concludes with applying percentages to discounts and battery charge levels.

Target audience:

Especially suitable for students who are in the process of learning to read and write, and can be used in Elementary School, Middle School, and High School, depending on the student's curricular adaptation needs.

It may be particularly helpful for students with:

• Mild to moderate Intellectual Disabilities who need concrete examples and visual support.

• Dyscalculia who may experience difficulties understanding quantities, mathematical operations, and percentages.

• Reading and mathematical interpretation difficulties who benefit from short instructions and clear answer choices.

The material can also support Mathematics and Specialized Educational Support (AEE) teachers.

Format:

Ready-to-print PDF containing:

🔹 4 adapted questions with 4 answer choices each; 🔹 1 visual summary page and 1 activity page; 🔹 complete answer key; 🔹 illustrations featuring coins, a graduated measuring jug, a toy, and a smartphone; 🔹 addition, measurement reading, and percentage activities; 🔹 answers selected by marking an X; 🔹 versions with standard lettering and UPPERCASE lettering; 🔹 black-and-white version; 🔹 BNCC-related skills.

⏱️ Save approximately 1 hour and 25 minutes of preparation time! The material is already adapted, illustrated, formatted, and accompanied by a complete answer key, reducing the time needed to develop questions and organize visual resources.

Content covered:

1. Decimal numbers and money: Adding Brazilian coins to identify a total value of R$ 1.75.

2. Capacity measurements: Reading a graduated measuring jug containing 750 mL of water.

3. Percentage discounts: Calculating the new price of a toy car originally priced at R$ 100.00 with a 25% discount, resulting in R$ 75.00.

4. Percentages and technology: Identifying that a battery with 78% charge remaining has already used 22% of its capacity.

The introductory summary presents the relationships 1.0 = 100%, 0.5 = 50%, and 0.25 = 25%, using pizza illustrations to represent parts of a whole.

Important information for teachers:

The activity presents situations that help students develop functional mathematical skills, connecting numbers and percentages to information encountered in everyday life.

In the first question, students observe three Brazilian coins and identify the sum of their values, developing money recognition and the ability to combine decimal quantities.

In the second question, students interpret the markings on a graduated measuring jug to recognize 750 mL, practicing the reading of capacity measurements.

In the third question, students observe a toy car advertised for R$ 100.00 with a 25% discount and identify its new price. Using an original price of R$ 100.00 makes it easier to understand percentages as parts of one hundred.

In the fourth question, students analyze the information that a smartphone battery has 78% charge remaining and determine that 22% has already been used, applying the calculation 100% − 78%.

The introductory visual summary provides references for understanding decimal numbers and percentages and can be revisited during teacher-guided instruction.

Key features:

✅ Functional Mathematics: Everyday situations involving money, measurements, shopping, and technology.

✅ Visual summary: Connects decimal numbers and percentages through pizza illustrations.

✅ Concrete examples: Coins, a graduated measuring jug, a toy, and a smartphone battery.

✅ Clear instructions: Four answer choices per question, with answers selected by marking an X.

✅ Minimal writing requirements: Allows students to demonstrate mathematical knowledge without lengthy written responses.

✅ Accessibility: Available in UPPERCASE and black-and-white versions, with a complete answer key.