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- Grade Range
- 3rd
- Rating
Students define and observe transpiration in a cactus and woodland plant. After comparing the two, students recreate with sponges the adaptation used by desert cacti . Full Review »
- Grade Range
- 1st
- Rating
Students participate in a five-step scientific experiment to investigate how cactus survive in harsh climates. They listen to the book "Cactus Hotel," discuss what they know about cactus plants, and observe how the waxy coating on an aloe vera cactus protects the plant. Full Review »
- Grade Range
- 3rd
- Rating
Students focus on their listening and speaking skills in a lesson based on Brenda Guiberson's picture book, Cactus Hotel. They participate in a tasting of prickly pear salsa, a picture walk of the book, and a describe the pictures in both their first and second language. In pairs, they retell the story to each other. Full Review »
- Grade Range
- 1st
- Rating
Students examine the Saguaro cactus holds water by completing a simulation which shows how the circumference of the cactus changes in times of drought and times of rainfall. They complete a K-W-L chart about cacti before they measure the circumference of Saguaro cactus fans which they made. Full Review »
- Grade Range
- 2nd - 4th
- Rating
Students listen to a read aloud of Brenda Z. Guiberson's, "Cactus Hotel" before acting the story out using the proper sequence of events. Using a graphic organizer, they determine the beginning, middle, and end of the story. Finally, as an assessment they write a summary, poem or narrative from the cacti' point of view. Full Review »
- Grade Range
- 3rd
- Rating
Students study the life cycle and growth conditions of the Saguaro cactus of the Sonoran Desert in this series of lessons. They listen to a read aloud, answer questions, sequence story events, and identify the life cycle of the cactus. Using information from the read aloud they illustrate a timeline of the life of a cactus. Full Review »
- Grade Range
- 3rd
- Rating
Students listen to a teacher read-aloud of the book "Alejandro's Gift." They discuss as a class how important water is to the desert. They work in groups to pour water into the saguaro cactus and measure the circumference of the cactus after the water is poured in. Full Review »
- Grade Range
- 3rd
- Rating
Students explore estimation. Given a worksheet, students estimate the number of blocks it would take to cover a cactus. Pupils compare papers and discover there are many ways to cover the cactus. Children count the number of blocks used. Full Review »
- Grade Range
- 3rd - 4th
- Rating
Students discuss prior knowledge about deserts and focus their attention on the saguaro cactus. In groups, they examine a cactus snd record their observations in journals. Students conduct experiments with sponges, one covered with vaseline, to simulate how a cactus retains water. They conclude by listening to the teacher read the book, "Cactus Hotel." Full Review »
- Grade Range
- 9th - 12th
- Rating
Students formulate a hypothesis regarding the validity of the current status of the Arizona Hedgehog cactus as a distinct variety of cactus. They design a procedure to isolate DNA from the tissue of plants, given a list of chemicals and equipment, and prior knowledge of the structure and biochemistry of plant cells. Full Review »
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