Perpendicular Lines Study Guide
- Definition: Two lines are perpendicular if they intersect at a 90-degree angle.
- Identifying Perpendicular Lines: Use a protractor to measure the angles where the lines intersect.
- Symbol: The symbol for perpendicular lines is ⊥.
- Parallel and Perpendicular Lines: Perpendicular lines intersect and form right angles, unlike parallel lines.
- Applications: Perpendicular lines are used in construction, architecture, and engineering.
- Perpendicular Bisector: A line that is perpendicular to another line segment and divides it into two equal parts.
◂Math Worksheets and Study Guides Fourth Grade. Data Analysis
Study Guide
Data Analysis 
Activity Lesson
Interpreting Graphs Activity Lesson
Frequent Flyer Activity Lesson
Holiday Heat Activity Lesson
Story Time Activity Lesson
Farmer Frank's Fruit Worksheet/Answer key
Data Analysis Worksheet/Answer key
Data Analysis Worksheet/Answer key
Data Analysis Worksheet/Answer key
Data Analysis Worksheet/Answer key
Bar Graph Vocabulary/Answer key
Data Analysis
Activity LessonActivity LessonActivity LessonActivity LessonActivity LessonWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
Data Analysis and Probability (NCTM)
Select and use appropriate statistical methods to analyze data.
Use measures of center, focusing on the median, and understand what each does and does not indicate about the data set.