The purpose of this resource is to investigate the idea that every dynamic system has energy and matter in different forms.
This resource is part of Tools4NCTeachers.
In this lesson, students will compare and reason about the values of two-digit numbers based on the number of tens and ones in the numbers.
This resource is part of Tools4NCTeachers.
In this lesson, students explore strategies for counting handfuls of cubes to develop the concept of place value.
This resource is part of Tools4NCTeachers.
In this task, students apply their place value understanding to compose and decompose 2-digit numbers. A scoring rubric is included. The task may be used for instructional or assessment purposes.
This resource is part of Tools4NCTeachers.
In this lesson, students strategically create and order two-digit numbers on their game boards to develop the concept of place value.
This resource is part of Tools4NCTeachers.
Arrow cards are a great tool for developing an understanding of place value! In this lesson, students explore making numbers with place value materials and arrow cards. The develop the concept that the digits of a number represent amounts of tens and ones.
This resource is part of Tools4NCTeachers.
Arrow cards are a great tool for developing an understanding of place value! In this lesson, students explore making numbers with place value materials and arrow cards. The develop the concept that the digits of a number represent amounts of tens and ones.
This resource is part of Tools4NCTeachers.
This resource is part of Tools4NCTeachers.
In this task, the teacher pretends to have some groups of ten cubes and some leftover. The Student must state the total quantity. A scoring rubric is included. The task may be used for instructional or assessment purposes.
How is the CRISPR-Cas9 system being used?
Follow guidelines to address issues about CRISPR in all sections.
We’ve now studied how the CRISPR-Cas9 system can be used to change DNA in humans or other organisms. Now it’s time to put what we have learned together into an explanation for how it might work to cure heritable diseases.
Students learn about homeostasis and create models by constructing simple feedback systems using Arduino boards, temperature sensors, LEDs and Arduino code. Starting with pre-written code, students instruct LEDs to activate in response to the sensor detecting a certain temperature range. They determine appropriate temperature ranges and alter the code accordingly. When the temperature range is exceeded, a fan is engaged in order to achieve a cooling effect. In this way, the principle of homeostasis is demonstrated. To conclude, students write summary paragraphs relating their models to biological homeostasis.