This resource is designed to help learners understand decimal values, particularly focusing on parts smaller than one. It begins with an imaginative scenario of slicing a pizza into 1,000 pieces to introduce the concept of fractions and decimals. The goal is to explore naming decimal values accurately, starting from tenths (0.1) to hundredths (0.01) and moving on to thousandths (0.001). The resource includes a review of place values, demonstrating the relationship between fractions and their decimal equivalents. Through a comparison table and discussion prompts, learners engage with the concept of positional value, understanding how each place to the right of the decimal represents a division by ten. The resource also emphasizes the importance of expanded form in visualizing how numbers are constructed from their digits, illustrating with an example of 1.234. Guided practices and critical thinking questions are included to reinforce learning and ensure a comprehensive understanding of how to read, write, and utilize decimals in real-world contexts.