Formative Instructional and Assessment Tasks
Making Bracelets5.NBT.7-Task 5
Domain / Number and Operations in Base Ten
Cluster / Perform operations with multi-digit whole numbers and with decimals to hundredths.
Standard(s) / 5.NBT.7 Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.
Materials / Paper and pen
Task / Making Bracelets
Beads are sold in packs by color. White beads are $0.57 per bag. Blue, red, and green beads are $0.73 per bag. Pink beads are $0.77 per bag.
If a student buys 3 bags of each color how much do they spend on each color of white beads? Red beads? Pink beads? How much money do they spend total?
If you paid for the beads with a $20 bill how much change do you get back?
Rubric
Level I / Level II / Level III
Limited Performance
· Student generates incorrect answers (or no answers) for all tasks. / Not Yet Proficient
· Student calculates correct answers for 1 part of the task.
· / Proficient in Performance
· Student calculates correct answers for all parts.
· Question 1: White- $1.71, Blue, red, green- $2.19, Pink- $2.31. Total- $10.59.
· Change- $9.41.
Standards for Mathematical Practice
1. Makes sense and perseveres in solving problems.
2. Reasons abstractly and quantitatively.
3. Constructs viable arguments and critiques the reasoning of others.
4. Models with mathematics.
5. Uses appropriate tools strategically.
6. Attends to precision.
7. Looks for and makes use of structure.
8. Looks for and expresses regularity in repeated reasoning.
Making Bracelets
Beads are sold in packs by color. White beads are $0.57 per bag. Blue, red, and green beads are $0.73 per bag. Pink beads are $0.77 per bag.
If a student buys 3 bags of each color how much do they spend on each color of white beads? Red beads? Pink beads? How much money do they spend total?
If you paid for the beads with a $20 bill how much change do you get back?
NC DEPARTMENT OF PUBLIC INSTRUCTION FIFTH GRADE