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### Exploring Other Number Patterns

3-5

Students analyze numeric patterns, including Fibonacci numbers. They also
describe numeric patterns and then record them in table form.### Hopping on the Number Line

3-5

In this lesson, students generate products using the number line model.
This model highlights the measurement aspect of multiplication and is a
distinctly different representation of the operation. The order
(commutative) property of multiplication is also introduced. Students
are encouraged to predict products and to answer puzzles involving
multiplication.### Looking Back and Moving Forward

3-5

During this lesson, student use mathematical knowledge and skills developed in the previous lessons to demonstrate understanding and ability to apply that knowledge in a real-life context. As students tackle more complex tasks, teachers have opportunity to observe student’s competence with methods and tools for computation, estimation, problem posing and solving, collection of data, organization and interpretation of graphical representations, measuring with standard units, and responding to investigations that require the comparison of data sets.### Balancing Act

Pre-K-2

Problems such as those in this activity help develop what students already know in preparation for writing equations and learning ways to solve for variables. Students use mathematical models to explore quantitative relationships. When presented with pictures of pan balances with one or more objects in each pan, they communicate relationships between the weights of the objects by comparing the balanced and unbalanced pans. ### Looking Back and Moving Forward

9-12

As you review student work in this unit, it is important to remember
the mathematical objectives/expectations of this Unit Plan that are
stated in *Principles and Standards for School Mathematics*.

### Finding Properties for Sorting

Pre-K-2

Students sort objects and observe the properties others use for sorting. This activity helps students understand and connect many mathematical ideas. By labeling their sorts, students connect number with sets of objects that compose the pattern.### What’s My Rule for Sorting?

Pre-K-2

Students build on prior knowledge of sorting and classifying when they recognize sorts and name rules for sorting. They identify common properties in the classroom environment and make, explain, and defend conjectures to extend their knowledge. ### Building Numbers to Five

Pre-K-2

In this lesson, students make groups of zero to 5 objects, connect number names to the groups, compose and decompose numbers, and use numerals to record the size of a group. Visual, auditory, and kinesthetic activities are used to help students begin to acquire a sense of number.### Writing Numerals to Five

Pre-K-2

As students construct groups of a given size, recognize the number in the group, and record that number in numerals, they learn the number words through 5 in order (namely, to rote count), and develop the ability to count rationally.### Building Sets of Six

Pre-K-2

In this lesson, students construct sets of six, compare them with sets of a size up to six objects, and write the numeral 6. They also show a set of six on a "10" Frame and on a recording chart.