Where This Skill Fits
This strand covers telling time to the minute, measuring and estimating liquid volume and mass, and representing and interpreting data on scaled graphs — all areas where students apply their number sense to real-world quantities.
Prerequisite Skills
- Telling time to five-minute intervals (2nd grade)
- Skip-counting by 5s and 10s
- Basic multiplication and division meaning
Recommended Conceptual Progression
- Tell and write time to the nearest minute
- Solve elapsed-time word problems
- Measure and estimate liquid volume and mass in standard units
- Read a scaled picture graph or bar graph
- Solve problems using data from a scaled graph
Common Student Misconceptions
- Reading a scaled graph as if each unit equals 1, ignoring that a symbol or bar increment might represent 2, 5, or 10.
- Confusing elapsed time with clock-reading — reading start and end times correctly but not calculating the duration between them.
- Mixing up volume and mass units when estimating, since both are new standard units at this grade.
Recommended Visual Models
- Analog clock models — for elapsed time problems
- Number lines — for representing elapsed time as a jump from start to end
- Scaled bar graphs — for practicing reading and building graphs with a stated key
Small-Group Teaching Sequence
Model reading the scale/key on a graph or clock explicitly before asking any comprehension questions, guide students through a similar reading together, then have students answer questions from a new graph or clock independently.
I Do Example
"This graph's key says each picture equals 2 votes. This bar has 3 pictures, so that's 3 × 2 = 6 votes." (Teacher explicitly connects the key to the multiplication needed to read the graph.)
We Do Example
"Let's find the elapsed time from 2:15 to 2:50 together. Let's count by 5s on the number line from 2:15." (Teacher and students jump forward together in five-minute intervals.)
You Do Example
Students answer three questions from a new scaled bar graph independently, including one question requiring them to compare two categories.
Quick Check
One elapsed-time problem and one graph-reading problem, checking whether the student references the scale/key rather than just counting bars or clock hands directly.
If the Student Is Ready
Move to building their own scaled graph from a data set, choosing an appropriate scale.
If the Student Is Not Ready
Return to graphs where each unit equals 1 before introducing a scale, and revisit skip-counting if the multiplication step is the sticking point.
Related Skills
- Before: Telling time to five minutes, simple graphs (2nd grade)
- Current: Elapsed time, liquid volume/mass, scaled graphs
- Next: Area, perimeter, and more complex data displays (4th grade)
Relevant SMS Resources
- 3rd Grade Measurement & Data Small Group Bundle | I Do We Do You Do
- 3rd Grade Time & Elapsed Time Small Group Routine | I Do We Do You Do
- 3rd Grade Perimeter Small Group Routine | I Do We Do You Do
- 3rd Grade Scaled Graphs Routine | Small Group Measurement & Data
Browse more 3rd grade measurement and data routines, task cards, and quick checks in the full catalog.
Related Guides
Teacher FAQ
Why do my students get elapsed time wrong even though they can read a clock?
Reading a clock and calculating a duration are different skills — a number-line model that shows the "jump" from start to end time usually clears this up faster than more clock practice alone.
Do I need special measurement tools for volume and mass?
Real measuring cups and a simple balance scale make the concept concrete, but printed visual models work as a starting point when materials aren't available.