Skill acquisition plans include goals, objectives, __________, and data collection.

The correct answer is that skill acquisition plans include goals, objectives, materials, and data collection.

Materials are essential components of skill acquisition plans because they provide the necessary tools and resources required to facilitate learning and practice. These could include items like visual aids, toys, worksheets, or any specific equipment needed to support the targeted skills. The integration of appropriate materials enhances the effectiveness of the teaching approach and ensures that the learning environment is conducive to acquiring the desired skills.

While options like strategies or instructions are important in the context of implementing a skill acquisition plan, they do not specifically fall under the category of "materials." Being well-prepared with the right materials directly influences how effectively the goals and objectives can be met during the learning process.