Saw horse

Here are some photos of my sawhorse that I made in term 1 (2021) for Wood technology, (BCATS) L1 NCEA. 

This took me nearly the whole term which was 10 weeks long. so a bit shorter than 10 weeks, (maybe 7 or 8)

In this blog, I will show you evidence of me making the sawhorse and the set of instructions that tells you how to make it. I'll also tell you about the hand tools we used and how we used them.

What I enjoyed the most about creating my sawhorse was that if we made a mistake we got a second chance, we just didn't make that same mistake twice. What I also liked was that we got a practice assessment so we could fail and it wouldn't matter and so we wouldn't fail on the main assessment/sawhorse.

           Heres my 3 photos.

Sliding bevel: For this handtools assessment we set all of our sliding bevels to a 15-degree angle. We did this because every angle we needed to mark out was either 15-degrees, 180-degrees (straight), or 90-degrees. Basically, any angle that wasn't 15-degrees was 180-degrees  or 90-degrees

Combination square: We used a combination square to mark any straight lines that were square with our piece of wood (90-degrees). This tool was a lifesaver. It's used instead of a ruler to get a straight line because we set the revolving turret piece to 180-degrees to get it nice and square.

Handsaw: We used a saw just as a saw is made for, cutting wood, however, our teacher Mr. Rees Showed us how to use a saw properly. Keep your elbow close to your body and follow through the piece of wood with your arm going straight the whole time to keep the cuts straight and prevent the blade from wobbling. Use all the teeth of the saw and take your time rather than going way too fast.

1 Metre ruler: At the end of our work we had to straighten/even up the legs of our sawhorse. how we did this was by putting the sawhorse upside down on a table. Then finding the shortest leg. let's say the shortest leg was 780mm tall we'd mark a line on all four legs at about 775mm and then get our ruler and join up both marks on the outside of our 2 legs and mark a straight line. We did this on all sides of our four legs.

Below is some photo evidence of me doing the work.

this is me hand sawing the end of one of my legs at                                      a 15-degree angle.

 This is me marking out the top of my work and                                                                            planning my legs with a sliding bevel.

This is me attaching the support to the base of my                                                                                              work. It is also attached to both of my end pieces,                                                       we screwed it on afterwards

here's a photo of some of the hand tools we used to create our sawhorse.     

           

This is the sawhorse we need to construct. The whole set of                                  instructions are below in the pictures.

This is the end of my blog post (: Please comment to let me know how I did.

does your dominant hand have a faster reaction time than your non-dominant hand?

 Results showed: (1) For single responses and paired responses to simultaneous stimuli, responses by the dominant hand were made significantly faster than by the non-dominant hand.

That was information from google but I am going to tell you my results

Right hand: 40mm, 105mm, 120mm, 105mm, 50mm, 75mm. Total = 495mm

Left hand: 115mm, 140mm, 150mm, 110mm, 225mm, 148mm. . Total = 888mm 

as you can see by my results, the information from google was facts as my right hand was much quicker at reacting. That means that the answer is yes, your dominant hand is quicker at reacting than your non-dominant hand.

Mean, Median and Mode

Mean :It is the sum (total) of all the values in a set of data, such as numbers or measurements, divided by the number of values on the list. To find the mean, add up all the values in the set. Then divide the sum by how many values there are. ... That is the mean.

Median: The medil[--e middle number in a sorted, ascending or descending, list of numbers and can be more descriptive of that data set than the average. The median is sometimes used as opposed to the mean when there are outliers in the sequence that might skew the average of the values.

Mode: The median is the middle number in a sorted, ascending or descending, list of numbers and can be more descriptive of that data set than the average. The median is sometimes used as opposed to the mean when there are outliers in the sequence that might skew the average of the values.

Who invented mean, medin and mode? Edmund Halley

The term is first found in the mid-1690s in the writings of Edmund Halley (1656-1742), and it has been used to summarize observations of a variable since the time of Galileo (1564-1642).

What can median be used for? The median can be used to determine an approximate average, or mean, but is not to be confused with the actual mean. If there is an odd amount of numbers, the median value is the number that is in the middle, with the same amount of numbers below and above.

What can mode be used for? Mode is most useful as a measure of central tendency when examining categorical data, such as models of cars or flavors of soda, for which a mathematical average median value based on ordering can not be calculated.

What can mean be used for? The mean can be used to represent the typical value and therefore serves as a yardstick for all observations. ... An example would be comparing the mean number of annual training hours for women and for all employees. Comparisons Using Means. The mean is useful for furthter calculations.

Cubic metres to litres

1 metre cubed = 1 000 Litres 

5 metres cubed = 5 000 Litres

To convert cubic metres to litres we need to times cubic metre by 1000. Eg: 13 cubic metres is equal to 13000 litres. Working 13 x 1000 = 13000L

An easy way to figure this out anywhere is to just add three zeros to the cubic metres to get answer in litres. Eg: 45 Cubic metres +three zeros = 45000. Answer = 45000L