CK-12 Foundation
Introduction to Mean, Median, and Mode: The Tree Conundrum
How many trees should we plant? Using an interactive as a manipulative, individuals find the mean, median, and mode for sets of data. They determine the number of trees to plant in each plot of land to reach a statistical goal.
Curated OER
My Tree Observations
In this tree observation worksheet, students pick a tree that they observe over the course of a school year. They make observations, they sketch the tree, they take photographs of the tree, they get a leaf sample. They estimate the tree...
Alabama Learning Exchange
How Old Is That Tree?
Fifth graders study environmental changes by examining the annual rings of a cross-section of a tree trunk. They access websites to complete a worksheet on the parts of a tree. They count the annual rings on a tree slice while observing...
Curated OER
What's That Tree?
Fifth graders identify trees along a nature trail. Using a dichotomous key, 5th graders answer questions to aid in their identification of trees along a specified nature trail. Observations are recorded in their science journals. Sample...
Curated OER
Community Tree Contest
Students observe trees in their neighborhood. They practice tree identification and incorporate math skills to determine the winner of a 'Tree-mendous Tree' contest in which they determine which is the biggest tree.
Curated OER
How Trees Contribute to the Water Cycle
In this water cycle instructional activity, 3rd graders conduct an experiment where they observe and calculate how water transpires in different types of trees. Students engage in a class discussion and use Venn Diagrams to compare...
Curated OER
Lord of the Rings - A Study of Tree Rings
Students examine trees and discuss how the environment effected the tree. They also predict what the area look like in fifty years.
Curated OER
A Tree-mendous Project
Seventh graders use their observation and measurement skills to identify trees. Using a tree diagram, they label the parts and discuss the functions of the tree. They practice using a dichotomous key to identify trees as well.
Curated OER
Measurement 3: Rulers
In this measurement worksheet, students measure the linear distance, in inches, between stated objects. Next, they determine the actual distance, in miles.
Curated OER
Data Analysis, Probability, and Discrete Math
Choose to supplement your probability unit with this resource and you won't be disappointed with the outcome. Teach young mathematicians to organize information using tree diagrams and lists in order to determine the possible outcomes of...
National Wildlife Federation
What is DBH?
When measuring the circumference of a tree, does it matter how high you place the measuring tape? Most scholars have never considered this question, but scientists know that measurement techniques must be standardized. The 13th lesson in...
Florida Center for Instructional Technology
The Shadow Knows: Student Worksheet
How can you measure the height of a tree or telephone pole with only a short measuring tape? It's not a problem when you start by measuring your shadow and your height to create a ratio to use with taller objects. Additional...
Curated OER
Shape Picture
Get your youngsters using rules! For this challenge, they measure the shapes that make up a house and a tree to practice measuring in centimeters. Then, they write down the equation for each shape. (Example: 4+6+4+6.) Finally, they...
Centre for Innovation in Mathematics Teaching
Ten Data Analysis Activities
This thirteen page data analysis learning exercise contains a number of interesting problems regarding statistics. The activities cover the concepts of average measurements, standard deviation, box and whisker plots, quartiles, frequency...
Curated OER
Thick, Thicker, Thickest
Do your kindergartners know the difference between thick and thin? After reviewing a picture of a tree and a candle, kids draw a thicker version of each in the space provided. They also draw a ring around the thickest pencil and the...
Curated OER
Does The Type of Mulch Used Affect Plant Growth?
Students measure, record and graph the plants they grow in a controlled setting. They feed and water the plants as needed and use the scientific method to evaluate the growth.
Rainforest Alliance
Colombia Biodiversity
How diverse is the rainforest? How much more diverse is a rain forest than a temperate forest? Explore these focus questions in a lesson that explores the plants, animals, and insects in forests. After listening to a reading...
Curated OER
Forest Measurements
Students analyze timber and use measuring techniques to figure board feet. In this investigative lesson students learn why accurate measurements are important and how to convert standing timber to board feet.
Computer Science Unplugged
Ice Roads–Steiner Trees
As an introduction to Steiner Trees, class members are challenged to find the shortest paths to connect multiple points. The teacher introduces the problem by showing how to connect three points. Groups then go outside and construct a...
Mathematics Assessment Project
Sampling and Estimating: Counting Trees
Your task today: count all the trees on a tree farm. To complete the assignment, learners first estimate the number of trees on a tree farm using random sampling. To improve their own response they then evaluate provided...
Nuffield Foundation
Measuring Rate of Water Uptake by a Plant Shoot Using a Potometer
How quickly does a plant transpire? Learners explore this question through measuring water uptake with a potometer. They time the movement of a bubble a set distance to understand the motion and rate of speed.
Curated OER
Short, Shorter, Shortest, Part 2
Can your kindergartners draw a shorter tree? What about a shorter kite string? Reinforce relative size and comparing with a clever worksheet. It prompts young learners to study a picture and draw a shorter version, and to choose the...
Curated OER
Measuring Activity
In this measuring worksheet, students cut out a measuring bar, using it to measure and record the height of pictures of trees. A reference web site is given for additional activities.
Curated OER
Measure the Height – Complex
In this height worksheet, students measure the height of items such as a tree, giraffe, and more with the units given. Students complete 10 activities.