Calculating and Comparing Slopes Warm-Up
A short warm-up for 8th graders that builds slope fluency by having students find the slope from two line graphs and from two points with no graph, then order all the slopes from greatest to least. The set deliberately mixes steep and gradual slopes and positive and negative slopes, so it doubles as practice in reading rates of change and comparing them.
“create a warm up that has students find the slope on a 2 differnt line graphs, from two different sets 2 points with no graph and then order the slopes from greatest to least, include both steep and gradual slopes as well as positive and negative slopes”
Teacher Guide & Tips
- Use as a 10-15 minute opening warm-up before a lesson on slope or linear functions, with students working individually before a quick whole-class check.
- Discussion question: How can you tell from a graph whether a slope is steep or gradual, and does a steeper line always have a larger slope value if the slope is negative?
- Scaffold for struggling readers: Have them label (x1, y1) and (x2, y2) on each pair of points before applying the formula m = (y2 - y1)/(x2 - x1), and remind them to subtract in the same order in both numerator and denominator.
- Extension for advanced students: Ask them to write a sentence explaining why a horizontal line has slope 0 and a vertical line has no defined slope, then place those values in the ordering.
- Estimated time: About 12 minutes for the full set, including a brief answer review.
What is Diffit?
Teachers use Diffit to get quality materials for their unique classrooms. Adjust difficulty, add scaffolds, or change the topic to get started.
Try Diffit for free“create a warm up that has students find the slope on a 2 differnt line graphs, from two different sets 2 points with no graph and then order the slopes from greatest to least, include both steep and gradual slopes as well as positive and negative slopes”
Teacher Guide & Tips
- Use as a 10-15 minute opening warm-up before a lesson on slope or linear functions, with students working individually before a quick whole-class check.
- Discussion question: How can you tell from a graph whether a slope is steep or gradual, and does a steeper line always have a larger slope value if the slope is negative?
- Scaffold for struggling readers: Have them label (x1, y1) and (x2, y2) on each pair of points before applying the formula m = (y2 - y1)/(x2 - x1), and remind them to subtract in the same order in both numerator and denominator.
- Extension for advanced students: Ask them to write a sentence explaining why a horizontal line has slope 0 and a vertical line has no defined slope, then place those values in the ordering.
- Estimated time: About 12 minutes for the full set, including a brief answer review.
Calculating and Comparing Slopes Warm-Up
A short warm-up for 8th graders that builds slope fluency by having students find the slope from two line graphs and from two points with no graph, then order all the slopes from greatest to least. The set deliberately mixes steep and gradual slopes and positive and negative slopes, so it doubles as practice in reading rates of change and comparing them.
What is Diffit?
Teachers use Diffit to get quality materials for their unique classrooms. Adjust difficulty, add scaffolds, or change the topic to get started.
Try Diffit for free