FastBridge has organized its guidance and resources for mathematics instruction and intervention into the seven domains shown below, covering Foundational, Applied, or Advanced skills. The interventions are included as part of the Instruction Plans in the Screening to Intervention Report for Math (s2i-M). There are both whole- and small-group lesson materials available in the Training and Resources section of the FastBridge website. Each intervention includes eight sections and users are encouraged to examine all the sections of an intervention prior to using it with students. This article provides information about the Geometry interventions.

**Geometry** is the branch of mathematics concerned with the properties of shapes. Proficiency with geometry includes automaticity and fluency with calculating and using relationships among

- points,
- lines,
- surfaces,
- solids, and
- higher dimensional analogs.

Geometry is one of two applied skill areas necessary for proficiency in mathematics. Additional information about how best to teach Geometry as part of a comprehensive mathematics curriculum is found in the free practice guides:

The FastBridge Screening to Intervention Report for Math (s2i-M) provides the best guidance for which interventions to use with whole classes as well as small groups. Go to the Training & Resources tab and select Geometry. The available FastBridge Geometry interventions include the following:

- Shape Identification Shape Bingo
- Shape Identification Constant Time Delay
- Shape Identification Incremental Rehearsal