what do they mean cognitive development/ does that fall under the diveristy tab like Attention spans are partly due to differences in temperament or the implications tab which is Change some toys and materials

No.

When you don't understand a word, use a dictionary.

http://dictionary.reference.com/browse/cognitive

so would it fit under the implication tab> like Provide objects that can be easily catorgized

Yes, that would be appropriate for children's cognitive development.

Cognitive development refers to the growth and changes in a person's thinking abilities, such as perception, attention, memory, problem-solving, and decision-making skills. It involves how individuals acquire knowledge, understand concepts, and develop intellectual capacities over time.

Regarding your question about where cognitive development falls under, it is not directly related to the diversity tab or the implications tab. Cognitive development is a separate aspect of human development that focuses on the cognitive abilities and processes individuals go through.

However, cognitive development can have implications or effects on various aspects of diversity and may indirectly impact attention spans, temperament, toy choices, and material preferences. For example, cognitive development may influence how individuals perceive and engage with different types of toys and materials, and it can also affect attention span and temperament indirectly through cognitive processes.

To explore the relationship between cognitive development, attention spans, temperament, and the impact on toy and material choices, you would need to consider research and information from various sources, including developmental psychology, educational psychology, and child development literature. You can find relevant studies, theories, and expert opinions published in scholarly journals, books, and reputable online resources through academic databases or platforms like Google Scholar.

By reviewing and analyzing the available literature and research, you can gain a deeper understanding of the relationships and influences between cognitive development, attention spans, temperament, and toy/material choices, and draw conclusions or implications based on the existing evidence.