> ## Documentation Index
> Fetch the complete documentation index at: https://help.edzo.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Number Chart Block

> Learn how to use Number Chart blocks to create configurable number grids for teaching patterns, counting, and number sense.

The **Number Chart** block creates a customizable number grid (like a hundreds chart) with options for hidden cells, highlighted cells, and custom coloring. Use it to explore number patterns, skip counting, and place value.

This is a display block for teaching and demonstration. Learners can view the chart but aren't assessed on it.

<Info>
  For assessable activities where learners fill in missing numbers or identify patterns, use the [Number Chart Question](/creating/resources/question-blocks/number-chart-question) block instead.
</Info>

## When to use Number Chart blocks

Number Chart blocks work well for:

* Displaying a hundreds chart (or any number range)
* Highlighting skip counting patterns (2s, 5s, 10s)
* Showing odd and even number patterns
* Hiding specific numbers for discussion and prediction
* Teaching place value and number relationships
* Exploring number sequences with custom step values

## Settings

### Chart settings

<ParamField path="Rows" default="10" type="slider">
  The number of rows in the chart (1 to 20).
</ParamField>

<ParamField path="Columns" default="10" type="slider">
  The number of columns in the chart (1 to 20).
</ParamField>

<ParamField path="Start number" default="1" type="input">
  The first number in the chart sequence.
</ParamField>

<ParamField path="Step" default="1" type="input">
  The increment between consecutive numbers (-50 to 50). Use negative values for countdown charts.
</ParamField>

<ParamField path="Direction" default="Left to right" type="select">
  The order in which numbers flow through the grid:

  * **Left to right**: Numbers read left to right on every row
  * **Snake**: Numbers alternate direction on each row (left-right, then right-left)
</ParamField>

### Display settings

<ParamField path="Cell size" default="Medium" type="select">
  The size of each cell in the chart:

  * **Small**: Compact cells
  * **Medium**: Standard cells
  * **Large**: Larger cells for younger learners
</ParamField>

### Cell customization

You can customize individual cells by:

* **Hiding cells**: Make specific numbers invisible for prediction activities
* **Highlighting cells**: Add a highlight color to draw attention to specific numbers
* **Coloring cells**: Apply custom colors to individual cells to show patterns

## Tips for teachers and parents

**Best practices:**

* Use a standard 10x10 grid starting at 1 for a classic hundreds chart
* Highlight multiples of a number (e.g., every 3rd cell) to show skip counting patterns
* Hide cells to create prediction activities ("What number should go here?")
* Change the start number and step to create charts for different number ranges
* Use **Snake** direction for number line-style displays
* Try a 1x10 grid for a simple number line layout
* Color-code groups of numbers to show patterns like odd/even

## Related blocks

* [Number Chart Question](/creating/resources/question-blocks/number-chart-question): Assessable version where learners fill in missing numbers or identify patterns
* [Number Line](/creating/resources/learning-blocks/number-line): For linear number displays
* [Number Frame](/creating/resources/learning-blocks/number-frame): For ten-frame and twenty-frame displays