Make a family tree for a school project on genealogy or history to show your ability to research and organise data on your family's heritage. A detailed family tree can also serve as a medical history and give clues to the types of diseases you are at risk for based on the diseases known to affect your family. Gather your family history to begin constructing your family tree.
Fill out an index card for each member of the family that you are adding to your tree. Write the name of the person in large print at the top of the card and write the birth date, marriage date and death date of the person (if applicable) below the name. If you are using the family tree for medical purposes, include any serious illnesses that the person had as well.
Draw a tree on your poster board for styling. It is not required, but it can make for a nice design and professional presentation.
Use white glue to stick the index cards of the first generation to the top of the tree. Place married couples next to each other. Draw a line above the cards and connect it to only those related by blood. Draw separate, smaller lines to connect married people to each other, below the index cards.
Add the next generation by drawing lines downward from the line connecting married couples. To do this, gather the cards that represent the children of the first generation. Adhere those cards below the cards of their parents in a single row, and draw lines from the parents' marriage line to the children's cards. Leave enough room for more cards between the children to add their spouses as well.
Continue adding generations until you reach the final generation that you want to include. Show divorces by placing a slash on the line between married couples.